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OMAP: DSS2: move enable/disable/suspend/resume
[linux-2.6-block.git] / drivers / video / omap2 / dss / dispc.c
CommitLineData
80c39712
TV		 1/*
2 * linux/drivers/video/omap2/dss/dispc.c
3 *
4 * Copyright (C) 2009 Nokia Corporation
5 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
6 *
7 * Some code and ideas taken from drivers/video/omap/ driver
8 * by Imre Deak.
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License version 2 as published by
12 * the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * more details.
18 *
19 * You should have received a copy of the GNU General Public License along with
20 * this program. If not, see <http://www.gnu.org/licenses/>.
21 */
22
23#define DSS_SUBSYS_NAME "DISPC"
24
25#include <linux/kernel.h>
26#include <linux/dma-mapping.h>
27#include <linux/vmalloc.h>
28#include <linux/clk.h>
29#include <linux/io.h>
30#include <linux/jiffies.h>
31#include <linux/seq_file.h>
32#include <linux/delay.h>
33#include <linux/workqueue.h>
34
35#include <plat/sram.h>
36#include <plat/clock.h>
37
38#include <plat/display.h>
39
40#include "dss.h"
41
42/* DISPC */
43#define DISPC_BASE 0x48050400
44
45#define DISPC_SZ_REGS SZ_1K
46
47struct dispc_reg { u16 idx; };
48
49#define DISPC_REG(idx) ((const struct dispc_reg) { idx })
50
51/* DISPC common */
52#define DISPC_REVISION DISPC_REG(0x0000)
53#define DISPC_SYSCONFIG DISPC_REG(0x0010)
54#define DISPC_SYSSTATUS DISPC_REG(0x0014)
55#define DISPC_IRQSTATUS DISPC_REG(0x0018)
56#define DISPC_IRQENABLE DISPC_REG(0x001C)
57#define DISPC_CONTROL DISPC_REG(0x0040)
58#define DISPC_CONFIG DISPC_REG(0x0044)
59#define DISPC_CAPABLE DISPC_REG(0x0048)
60#define DISPC_DEFAULT_COLOR0 DISPC_REG(0x004C)
61#define DISPC_DEFAULT_COLOR1 DISPC_REG(0x0050)
62#define DISPC_TRANS_COLOR0 DISPC_REG(0x0054)
63#define DISPC_TRANS_COLOR1 DISPC_REG(0x0058)
64#define DISPC_LINE_STATUS DISPC_REG(0x005C)
65#define DISPC_LINE_NUMBER DISPC_REG(0x0060)
66#define DISPC_TIMING_H DISPC_REG(0x0064)
67#define DISPC_TIMING_V DISPC_REG(0x0068)
68#define DISPC_POL_FREQ DISPC_REG(0x006C)
69#define DISPC_DIVISOR DISPC_REG(0x0070)
70#define DISPC_GLOBAL_ALPHA DISPC_REG(0x0074)
71#define DISPC_SIZE_DIG DISPC_REG(0x0078)
72#define DISPC_SIZE_LCD DISPC_REG(0x007C)
73
74/* DISPC GFX plane */
75#define DISPC_GFX_BA0 DISPC_REG(0x0080)
76#define DISPC_GFX_BA1 DISPC_REG(0x0084)
77#define DISPC_GFX_POSITION DISPC_REG(0x0088)
78#define DISPC_GFX_SIZE DISPC_REG(0x008C)
79#define DISPC_GFX_ATTRIBUTES DISPC_REG(0x00A0)
80#define DISPC_GFX_FIFO_THRESHOLD DISPC_REG(0x00A4)
81#define DISPC_GFX_FIFO_SIZE_STATUS DISPC_REG(0x00A8)
82#define DISPC_GFX_ROW_INC DISPC_REG(0x00AC)
83#define DISPC_GFX_PIXEL_INC DISPC_REG(0x00B0)
84#define DISPC_GFX_WINDOW_SKIP DISPC_REG(0x00B4)
85#define DISPC_GFX_TABLE_BA DISPC_REG(0x00B8)
86
87#define DISPC_DATA_CYCLE1 DISPC_REG(0x01D4)
88#define DISPC_DATA_CYCLE2 DISPC_REG(0x01D8)
89#define DISPC_DATA_CYCLE3 DISPC_REG(0x01DC)
90
91#define DISPC_CPR_COEF_R DISPC_REG(0x0220)
92#define DISPC_CPR_COEF_G DISPC_REG(0x0224)
93#define DISPC_CPR_COEF_B DISPC_REG(0x0228)
94
95#define DISPC_GFX_PRELOAD DISPC_REG(0x022C)
96
97/* DISPC Video plane, n = 0 for VID1 and n = 1 for VID2 */
98#define DISPC_VID_REG(n, idx) DISPC_REG(0x00BC + (n)*0x90 + idx)
99
100#define DISPC_VID_BA0(n) DISPC_VID_REG(n, 0x0000)
101#define DISPC_VID_BA1(n) DISPC_VID_REG(n, 0x0004)
102#define DISPC_VID_POSITION(n) DISPC_VID_REG(n, 0x0008)
103#define DISPC_VID_SIZE(n) DISPC_VID_REG(n, 0x000C)
104#define DISPC_VID_ATTRIBUTES(n) DISPC_VID_REG(n, 0x0010)
105#define DISPC_VID_FIFO_THRESHOLD(n) DISPC_VID_REG(n, 0x0014)
106#define DISPC_VID_FIFO_SIZE_STATUS(n) DISPC_VID_REG(n, 0x0018)
107#define DISPC_VID_ROW_INC(n) DISPC_VID_REG(n, 0x001C)
108#define DISPC_VID_PIXEL_INC(n) DISPC_VID_REG(n, 0x0020)
109#define DISPC_VID_FIR(n) DISPC_VID_REG(n, 0x0024)
110#define DISPC_VID_PICTURE_SIZE(n) DISPC_VID_REG(n, 0x0028)
111#define DISPC_VID_ACCU0(n) DISPC_VID_REG(n, 0x002C)
112#define DISPC_VID_ACCU1(n) DISPC_VID_REG(n, 0x0030)
113
114/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */
115#define DISPC_VID_FIR_COEF_H(n, i) DISPC_REG(0x00F0 + (n)*0x90 + (i)*0x8)
116/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */
117#define DISPC_VID_FIR_COEF_HV(n, i) DISPC_REG(0x00F4 + (n)*0x90 + (i)*0x8)
118/* coef index i = {0, 1, 2, 3, 4} */
119#define DISPC_VID_CONV_COEF(n, i) DISPC_REG(0x0130 + (n)*0x90 + (i)*0x4)
120/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */
121#define DISPC_VID_FIR_COEF_V(n, i) DISPC_REG(0x01E0 + (n)*0x20 + (i)*0x4)
122
123#define DISPC_VID_PRELOAD(n) DISPC_REG(0x230 + (n)*0x04)
124
125
126#define DISPC_IRQ_MASK_ERROR (DISPC_IRQ_GFX_FIFO_UNDERFLOW | \
127 DISPC_IRQ_OCP_ERR | \
128 DISPC_IRQ_VID1_FIFO_UNDERFLOW | \
129 DISPC_IRQ_VID2_FIFO_UNDERFLOW | \
130 DISPC_IRQ_SYNC_LOST | \
131 DISPC_IRQ_SYNC_LOST_DIGIT)
132
133#define DISPC_MAX_NR_ISRS 8
134
135struct omap_dispc_isr_data {
136 omap_dispc_isr_t isr;
137 void *arg;
138 u32 mask;
139};
140
141#define REG_GET(idx, start, end) \
142 FLD_GET(dispc_read_reg(idx), start, end)
143
144#define REG_FLD_MOD(idx, val, start, end) \
145 dispc_write_reg(idx, FLD_MOD(dispc_read_reg(idx), val, start, end))
146
147static const struct dispc_reg dispc_reg_att[] = { DISPC_GFX_ATTRIBUTES,
148 DISPC_VID_ATTRIBUTES(0),
149 DISPC_VID_ATTRIBUTES(1) };
150
dfc0fd8d
TV		 151struct dispc_irq_stats {
152 unsigned long last_reset;
153 unsigned irq_count;
154 unsigned irqs[32];
155};
156
80c39712
TV		 157static struct {
158 void __iomem *base;
159
160 u32 fifo_size[3];
161
162 spinlock_t irq_lock;
163 u32 irq_error_mask;
164 struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS];
165 u32 error_irqs;
166 struct work_struct error_work;
167
168 u32 ctx[DISPC_SZ_REGS / sizeof(u32)];
dfc0fd8d
TV		 169
170#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
171 spinlock_t irq_stats_lock;
172 struct dispc_irq_stats irq_stats;
173#endif
80c39712
TV		 174} dispc;
175
176static void _omap_dispc_set_irqs(void);
177
178static inline void dispc_write_reg(const struct dispc_reg idx, u32 val)
179{
180 __raw_writel(val, dispc.base + idx.idx);
181}
182
183static inline u32 dispc_read_reg(const struct dispc_reg idx)
184{
185 return __raw_readl(dispc.base + idx.idx);
186}
187
188#define SR(reg) \
189 dispc.ctx[(DISPC_##reg).idx / sizeof(u32)] = dispc_read_reg(DISPC_##reg)
190#define RR(reg) \
191 dispc_write_reg(DISPC_##reg, dispc.ctx[(DISPC_##reg).idx / sizeof(u32)])
192
193void dispc_save_context(void)
194{
195 if (cpu_is_omap24xx())
196 return;
197
198 SR(SYSCONFIG);
199 SR(IRQENABLE);
200 SR(CONTROL);
201 SR(CONFIG);
202 SR(DEFAULT_COLOR0);
203 SR(DEFAULT_COLOR1);
204 SR(TRANS_COLOR0);
205 SR(TRANS_COLOR1);
206 SR(LINE_NUMBER);
207 SR(TIMING_H);
208 SR(TIMING_V);
209 SR(POL_FREQ);
210 SR(DIVISOR);
211 SR(GLOBAL_ALPHA);
212 SR(SIZE_DIG);
213 SR(SIZE_LCD);
214
215 SR(GFX_BA0);
216 SR(GFX_BA1);
217 SR(GFX_POSITION);
218 SR(GFX_SIZE);
219 SR(GFX_ATTRIBUTES);
220 SR(GFX_FIFO_THRESHOLD);
221 SR(GFX_ROW_INC);
222 SR(GFX_PIXEL_INC);
223 SR(GFX_WINDOW_SKIP);
224 SR(GFX_TABLE_BA);
225
226 SR(DATA_CYCLE1);
227 SR(DATA_CYCLE2);
228 SR(DATA_CYCLE3);
229
230 SR(CPR_COEF_R);
231 SR(CPR_COEF_G);
232 SR(CPR_COEF_B);
233
234 SR(GFX_PRELOAD);
235
236 /* VID1 */
237 SR(VID_BA0(0));
238 SR(VID_BA1(0));
239 SR(VID_POSITION(0));
240 SR(VID_SIZE(0));
241 SR(VID_ATTRIBUTES(0));
242 SR(VID_FIFO_THRESHOLD(0));
243 SR(VID_ROW_INC(0));
244 SR(VID_PIXEL_INC(0));
245 SR(VID_FIR(0));
246 SR(VID_PICTURE_SIZE(0));
247 SR(VID_ACCU0(0));
248 SR(VID_ACCU1(0));
249
250 SR(VID_FIR_COEF_H(0, 0));
251 SR(VID_FIR_COEF_H(0, 1));
252 SR(VID_FIR_COEF_H(0, 2));
253 SR(VID_FIR_COEF_H(0, 3));
254 SR(VID_FIR_COEF_H(0, 4));
255 SR(VID_FIR_COEF_H(0, 5));
256 SR(VID_FIR_COEF_H(0, 6));
257 SR(VID_FIR_COEF_H(0, 7));
258
259 SR(VID_FIR_COEF_HV(0, 0));
260 SR(VID_FIR_COEF_HV(0, 1));
261 SR(VID_FIR_COEF_HV(0, 2));
262 SR(VID_FIR_COEF_HV(0, 3));
263 SR(VID_FIR_COEF_HV(0, 4));
264 SR(VID_FIR_COEF_HV(0, 5));
265 SR(VID_FIR_COEF_HV(0, 6));
266 SR(VID_FIR_COEF_HV(0, 7));
267
268 SR(VID_CONV_COEF(0, 0));
269 SR(VID_CONV_COEF(0, 1));
270 SR(VID_CONV_COEF(0, 2));
271 SR(VID_CONV_COEF(0, 3));
272 SR(VID_CONV_COEF(0, 4));
273
274 SR(VID_FIR_COEF_V(0, 0));
275 SR(VID_FIR_COEF_V(0, 1));
276 SR(VID_FIR_COEF_V(0, 2));
277 SR(VID_FIR_COEF_V(0, 3));
278 SR(VID_FIR_COEF_V(0, 4));
279 SR(VID_FIR_COEF_V(0, 5));
280 SR(VID_FIR_COEF_V(0, 6));
281 SR(VID_FIR_COEF_V(0, 7));
282
283 SR(VID_PRELOAD(0));
284
285 /* VID2 */
286 SR(VID_BA0(1));
287 SR(VID_BA1(1));
288 SR(VID_POSITION(1));
289 SR(VID_SIZE(1));
290 SR(VID_ATTRIBUTES(1));
291 SR(VID_FIFO_THRESHOLD(1));
292 SR(VID_ROW_INC(1));
293 SR(VID_PIXEL_INC(1));
294 SR(VID_FIR(1));
295 SR(VID_PICTURE_SIZE(1));
296 SR(VID_ACCU0(1));
297 SR(VID_ACCU1(1));
298
299 SR(VID_FIR_COEF_H(1, 0));
300 SR(VID_FIR_COEF_H(1, 1));
301 SR(VID_FIR_COEF_H(1, 2));
302 SR(VID_FIR_COEF_H(1, 3));
303 SR(VID_FIR_COEF_H(1, 4));
304 SR(VID_FIR_COEF_H(1, 5));
305 SR(VID_FIR_COEF_H(1, 6));
306 SR(VID_FIR_COEF_H(1, 7));
307
308 SR(VID_FIR_COEF_HV(1, 0));
309 SR(VID_FIR_COEF_HV(1, 1));
310 SR(VID_FIR_COEF_HV(1, 2));
311 SR(VID_FIR_COEF_HV(1, 3));
312 SR(VID_FIR_COEF_HV(1, 4));
313 SR(VID_FIR_COEF_HV(1, 5));
314 SR(VID_FIR_COEF_HV(1, 6));
315 SR(VID_FIR_COEF_HV(1, 7));
316
317 SR(VID_CONV_COEF(1, 0));
318 SR(VID_CONV_COEF(1, 1));
319 SR(VID_CONV_COEF(1, 2));
320 SR(VID_CONV_COEF(1, 3));
321 SR(VID_CONV_COEF(1, 4));
322
323 SR(VID_FIR_COEF_V(1, 0));
324 SR(VID_FIR_COEF_V(1, 1));
325 SR(VID_FIR_COEF_V(1, 2));
326 SR(VID_FIR_COEF_V(1, 3));
327 SR(VID_FIR_COEF_V(1, 4));
328 SR(VID_FIR_COEF_V(1, 5));
329 SR(VID_FIR_COEF_V(1, 6));
330 SR(VID_FIR_COEF_V(1, 7));
331
332 SR(VID_PRELOAD(1));
333}
334
335void dispc_restore_context(void)
336{
337 RR(SYSCONFIG);
338 RR(IRQENABLE);
339 /*RR(CONTROL);*/
340 RR(CONFIG);
341 RR(DEFAULT_COLOR0);
342 RR(DEFAULT_COLOR1);
343 RR(TRANS_COLOR0);
344 RR(TRANS_COLOR1);
345 RR(LINE_NUMBER);
346 RR(TIMING_H);
347 RR(TIMING_V);
348 RR(POL_FREQ);
349 RR(DIVISOR);
350 RR(GLOBAL_ALPHA);
351 RR(SIZE_DIG);
352 RR(SIZE_LCD);
353
354 RR(GFX_BA0);
355 RR(GFX_BA1);
356 RR(GFX_POSITION);
357 RR(GFX_SIZE);
358 RR(GFX_ATTRIBUTES);
359 RR(GFX_FIFO_THRESHOLD);
360 RR(GFX_ROW_INC);
361 RR(GFX_PIXEL_INC);
362 RR(GFX_WINDOW_SKIP);
363 RR(GFX_TABLE_BA);
364
365 RR(DATA_CYCLE1);
366 RR(DATA_CYCLE2);
367 RR(DATA_CYCLE3);
368
369 RR(CPR_COEF_R);
370 RR(CPR_COEF_G);
371 RR(CPR_COEF_B);
372
373 RR(GFX_PRELOAD);
374
375 /* VID1 */
376 RR(VID_BA0(0));
377 RR(VID_BA1(0));
378 RR(VID_POSITION(0));
379 RR(VID_SIZE(0));
380 RR(VID_ATTRIBUTES(0));
381 RR(VID_FIFO_THRESHOLD(0));
382 RR(VID_ROW_INC(0));
383 RR(VID_PIXEL_INC(0));
384 RR(VID_FIR(0));
385 RR(VID_PICTURE_SIZE(0));
386 RR(VID_ACCU0(0));
387 RR(VID_ACCU1(0));
388
389 RR(VID_FIR_COEF_H(0, 0));
390 RR(VID_FIR_COEF_H(0, 1));
391 RR(VID_FIR_COEF_H(0, 2));
392 RR(VID_FIR_COEF_H(0, 3));
393 RR(VID_FIR_COEF_H(0, 4));
394 RR(VID_FIR_COEF_H(0, 5));
395 RR(VID_FIR_COEF_H(0, 6));
396 RR(VID_FIR_COEF_H(0, 7));
397
398 RR(VID_FIR_COEF_HV(0, 0));
399 RR(VID_FIR_COEF_HV(0, 1));
400 RR(VID_FIR_COEF_HV(0, 2));
401 RR(VID_FIR_COEF_HV(0, 3));
402 RR(VID_FIR_COEF_HV(0, 4));
403 RR(VID_FIR_COEF_HV(0, 5));
404 RR(VID_FIR_COEF_HV(0, 6));
405 RR(VID_FIR_COEF_HV(0, 7));
406
407 RR(VID_CONV_COEF(0, 0));
408 RR(VID_CONV_COEF(0, 1));
409 RR(VID_CONV_COEF(0, 2));
410 RR(VID_CONV_COEF(0, 3));
411 RR(VID_CONV_COEF(0, 4));
412
413 RR(VID_FIR_COEF_V(0, 0));
414 RR(VID_FIR_COEF_V(0, 1));
415 RR(VID_FIR_COEF_V(0, 2));
416 RR(VID_FIR_COEF_V(0, 3));
417 RR(VID_FIR_COEF_V(0, 4));
418 RR(VID_FIR_COEF_V(0, 5));
419 RR(VID_FIR_COEF_V(0, 6));
420 RR(VID_FIR_COEF_V(0, 7));
421
422 RR(VID_PRELOAD(0));
423
424 /* VID2 */
425 RR(VID_BA0(1));
426 RR(VID_BA1(1));
427 RR(VID_POSITION(1));
428 RR(VID_SIZE(1));
429 RR(VID_ATTRIBUTES(1));
430 RR(VID_FIFO_THRESHOLD(1));
431 RR(VID_ROW_INC(1));
432 RR(VID_PIXEL_INC(1));
433 RR(VID_FIR(1));
434 RR(VID_PICTURE_SIZE(1));
435 RR(VID_ACCU0(1));
436 RR(VID_ACCU1(1));
437
438 RR(VID_FIR_COEF_H(1, 0));
439 RR(VID_FIR_COEF_H(1, 1));
440 RR(VID_FIR_COEF_H(1, 2));
441 RR(VID_FIR_COEF_H(1, 3));
442 RR(VID_FIR_COEF_H(1, 4));
443 RR(VID_FIR_COEF_H(1, 5));
444 RR(VID_FIR_COEF_H(1, 6));
445 RR(VID_FIR_COEF_H(1, 7));
446
447 RR(VID_FIR_COEF_HV(1, 0));
448 RR(VID_FIR_COEF_HV(1, 1));
449 RR(VID_FIR_COEF_HV(1, 2));
450 RR(VID_FIR_COEF_HV(1, 3));
451 RR(VID_FIR_COEF_HV(1, 4));
452 RR(VID_FIR_COEF_HV(1, 5));
453 RR(VID_FIR_COEF_HV(1, 6));
454 RR(VID_FIR_COEF_HV(1, 7));
455
456 RR(VID_CONV_COEF(1, 0));
457 RR(VID_CONV_COEF(1, 1));
458 RR(VID_CONV_COEF(1, 2));
459 RR(VID_CONV_COEF(1, 3));
460 RR(VID_CONV_COEF(1, 4));
461
462 RR(VID_FIR_COEF_V(1, 0));
463 RR(VID_FIR_COEF_V(1, 1));
464 RR(VID_FIR_COEF_V(1, 2));
465 RR(VID_FIR_COEF_V(1, 3));
466 RR(VID_FIR_COEF_V(1, 4));
467 RR(VID_FIR_COEF_V(1, 5));
468 RR(VID_FIR_COEF_V(1, 6));
469 RR(VID_FIR_COEF_V(1, 7));
470
471 RR(VID_PRELOAD(1));
472
473 /* enable last, because LCD & DIGIT enable are here */
474 RR(CONTROL);
475}
476
477#undef SR
478#undef RR
479
480static inline void enable_clocks(bool enable)
481{
482 if (enable)
483 dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
484 else
485 dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
486}
487
488bool dispc_go_busy(enum omap_channel channel)
489{
490 int bit;
491
492 if (channel == OMAP_DSS_CHANNEL_LCD)
493 bit = 5; /* GOLCD */
494 else
495 bit = 6; /* GODIGIT */
496
497 return REG_GET(DISPC_CONTROL, bit, bit) == 1;
498}
499
500void dispc_go(enum omap_channel channel)
501{
502 int bit;
503
504 enable_clocks(1);
505
506 if (channel == OMAP_DSS_CHANNEL_LCD)
507 bit = 0; /* LCDENABLE */
508 else
509 bit = 1; /* DIGITALENABLE */
510
511 /* if the channel is not enabled, we don't need GO */
512 if (REG_GET(DISPC_CONTROL, bit, bit) == 0)
513 goto end;
514
515 if (channel == OMAP_DSS_CHANNEL_LCD)
516 bit = 5; /* GOLCD */
517 else
518 bit = 6; /* GODIGIT */
519
520 if (REG_GET(DISPC_CONTROL, bit, bit) == 1) {
521 DSSERR("GO bit not down for channel %d\n", channel);
522 goto end;
523 }
524
525 DSSDBG("GO %s\n", channel == OMAP_DSS_CHANNEL_LCD ? "LCD" : "DIGIT");
526
527 REG_FLD_MOD(DISPC_CONTROL, 1, bit, bit);
528end:
529 enable_clocks(0);
530}
531
532static void _dispc_write_firh_reg(enum omap_plane plane, int reg, u32 value)
533{
534 BUG_ON(plane == OMAP_DSS_GFX);
535
536 dispc_write_reg(DISPC_VID_FIR_COEF_H(plane-1, reg), value);
537}
538
539static void _dispc_write_firhv_reg(enum omap_plane plane, int reg, u32 value)
540{
541 BUG_ON(plane == OMAP_DSS_GFX);
542
543 dispc_write_reg(DISPC_VID_FIR_COEF_HV(plane-1, reg), value);
544}
545
546static void _dispc_write_firv_reg(enum omap_plane plane, int reg, u32 value)
547{
548 BUG_ON(plane == OMAP_DSS_GFX);
549
550 dispc_write_reg(DISPC_VID_FIR_COEF_V(plane-1, reg), value);
551}
552
553static void _dispc_set_scale_coef(enum omap_plane plane, int hscaleup,
554 int vscaleup, int five_taps)
555{
556 /* Coefficients for horizontal up-sampling */
557 static const u32 coef_hup[8] = {
558 0x00800000,
559 0x0D7CF800,
560 0x1E70F5FF,
561 0x335FF5FE,
562 0xF74949F7,
563 0xF55F33FB,
564 0xF5701EFE,
565 0xF87C0DFF,
566 };
567
568 /* Coefficients for horizontal down-sampling */
569 static const u32 coef_hdown[8] = {
570 0x24382400,
571 0x28371FFE,
572 0x2C361BFB,
573 0x303516F9,
574 0x11343311,
575 0x1635300C,
576 0x1B362C08,
577 0x1F372804,
578 };
579
580 /* Coefficients for horizontal and vertical up-sampling */
581 static const u32 coef_hvup[2][8] = {
582 {
583 0x00800000,
584 0x037B02FF,
585 0x0C6F05FE,
586 0x205907FB,
587 0x00404000,
588 0x075920FE,
589 0x056F0CFF,
590 0x027B0300,
591 },
592 {
593 0x00800000,
594 0x0D7CF8FF,
595 0x1E70F5FE,
596 0x335FF5FB,
597 0xF7404000,
598 0xF55F33FE,
599 0xF5701EFF,
600 0xF87C0D00,
601 },
602 };
603
604 /* Coefficients for horizontal and vertical down-sampling */
605 static const u32 coef_hvdown[2][8] = {
606 {
607 0x24382400,
608 0x28391F04,
609 0x2D381B08,
610 0x3237170C,
611 0x123737F7,
612 0x173732F9,
613 0x1B382DFB,
614 0x1F3928FE,
615 },
616 {
617 0x24382400,
618 0x28371F04,
619 0x2C361B08,
620 0x3035160C,
621 0x113433F7,
622 0x163530F9,
623 0x1B362CFB,
624 0x1F3728FE,
625 },
626 };
627
628 /* Coefficients for vertical up-sampling */
629 static const u32 coef_vup[8] = {
630 0x00000000,
631 0x0000FF00,
632 0x0000FEFF,
633 0x0000FBFE,
634 0x000000F7,
635 0x0000FEFB,
636 0x0000FFFE,
637 0x000000FF,
638 };
639
640
641 /* Coefficients for vertical down-sampling */
642 static const u32 coef_vdown[8] = {
643 0x00000000,
644 0x000004FE,
645 0x000008FB,
646 0x00000CF9,
647 0x0000F711,
648 0x0000F90C,
649 0x0000FB08,
650 0x0000FE04,
651 };
652
653 const u32 *h_coef;
654 const u32 *hv_coef;
655 const u32 *hv_coef_mod;
656 const u32 *v_coef;
657 int i;
658
659 if (hscaleup)
660 h_coef = coef_hup;
661 else
662 h_coef = coef_hdown;
663
664 if (vscaleup) {
665 hv_coef = coef_hvup[five_taps];
666 v_coef = coef_vup;
667
668 if (hscaleup)
669 hv_coef_mod = NULL;
670 else
671 hv_coef_mod = coef_hvdown[five_taps];
672 } else {
673 hv_coef = coef_hvdown[five_taps];
674 v_coef = coef_vdown;
675
676 if (hscaleup)
677 hv_coef_mod = coef_hvup[five_taps];
678 else
679 hv_coef_mod = NULL;
680 }
681
682 for (i = 0; i < 8; i++) {
683 u32 h, hv;
684
685 h = h_coef[i];
686
687 hv = hv_coef[i];
688
689 if (hv_coef_mod) {
690 hv &= 0xffffff00;
691 hv |= (hv_coef_mod[i] & 0xff);
692 }
693
694 _dispc_write_firh_reg(plane, i, h);
695 _dispc_write_firhv_reg(plane, i, hv);
696 }
697
698 if (!five_taps)
699 return;
700
701 for (i = 0; i < 8; i++) {
702 u32 v;
703 v = v_coef[i];
704 _dispc_write_firv_reg(plane, i, v);
705 }
706}
707
708static void _dispc_setup_color_conv_coef(void)
709{
710 const struct color_conv_coef {
711 int ry, rcr, rcb, gy, gcr, gcb, by, bcr, bcb;
712 int full_range;
713 } ctbl_bt601_5 = {
714 298, 409, 0, 298, -208, -100, 298, 0, 517, 0,
715 };
716
717 const struct color_conv_coef *ct;
718
719#define CVAL(x, y) (FLD_VAL(x, 26, 16) | FLD_VAL(y, 10, 0))
720
721 ct = &ctbl_bt601_5;
722
723 dispc_write_reg(DISPC_VID_CONV_COEF(0, 0), CVAL(ct->rcr, ct->ry));
724 dispc_write_reg(DISPC_VID_CONV_COEF(0, 1), CVAL(ct->gy, ct->rcb));
725 dispc_write_reg(DISPC_VID_CONV_COEF(0, 2), CVAL(ct->gcb, ct->gcr));
726 dispc_write_reg(DISPC_VID_CONV_COEF(0, 3), CVAL(ct->bcr, ct->by));
727 dispc_write_reg(DISPC_VID_CONV_COEF(0, 4), CVAL(0, ct->bcb));
728
729 dispc_write_reg(DISPC_VID_CONV_COEF(1, 0), CVAL(ct->rcr, ct->ry));
730 dispc_write_reg(DISPC_VID_CONV_COEF(1, 1), CVAL(ct->gy, ct->rcb));
731 dispc_write_reg(DISPC_VID_CONV_COEF(1, 2), CVAL(ct->gcb, ct->gcr));
732 dispc_write_reg(DISPC_VID_CONV_COEF(1, 3), CVAL(ct->bcr, ct->by));
733 dispc_write_reg(DISPC_VID_CONV_COEF(1, 4), CVAL(0, ct->bcb));
734
735#undef CVAL
736
737 REG_FLD_MOD(DISPC_VID_ATTRIBUTES(0), ct->full_range, 11, 11);
738 REG_FLD_MOD(DISPC_VID_ATTRIBUTES(1), ct->full_range, 11, 11);
739}
740
741
742static void _dispc_set_plane_ba0(enum omap_plane plane, u32 paddr)
743{
744 const struct dispc_reg ba0_reg[] = { DISPC_GFX_BA0,
745 DISPC_VID_BA0(0),
746 DISPC_VID_BA0(1) };
747
748 dispc_write_reg(ba0_reg[plane], paddr);
749}
750
751static void _dispc_set_plane_ba1(enum omap_plane plane, u32 paddr)
752{
753 const struct dispc_reg ba1_reg[] = { DISPC_GFX_BA1,
754 DISPC_VID_BA1(0),
755 DISPC_VID_BA1(1) };
756
757 dispc_write_reg(ba1_reg[plane], paddr);
758}
759
760static void _dispc_set_plane_pos(enum omap_plane plane, int x, int y)
761{
762 const struct dispc_reg pos_reg[] = { DISPC_GFX_POSITION,
763 DISPC_VID_POSITION(0),
764 DISPC_VID_POSITION(1) };
765
766 u32 val = FLD_VAL(y, 26, 16) | FLD_VAL(x, 10, 0);
767 dispc_write_reg(pos_reg[plane], val);
768}
769
770static void _dispc_set_pic_size(enum omap_plane plane, int width, int height)
771{
772 const struct dispc_reg siz_reg[] = { DISPC_GFX_SIZE,
773 DISPC_VID_PICTURE_SIZE(0),
774 DISPC_VID_PICTURE_SIZE(1) };
775 u32 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
776 dispc_write_reg(siz_reg[plane], val);
777}
778
779static void _dispc_set_vid_size(enum omap_plane plane, int width, int height)
780{
781 u32 val;
782 const struct dispc_reg vsi_reg[] = { DISPC_VID_SIZE(0),
783 DISPC_VID_SIZE(1) };
784
785 BUG_ON(plane == OMAP_DSS_GFX);
786
787 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
788 dispc_write_reg(vsi_reg[plane-1], val);
789}
790
791static void _dispc_setup_global_alpha(enum omap_plane plane, u8 global_alpha)
792{
793
794 BUG_ON(plane == OMAP_DSS_VIDEO1);
795
796 if (cpu_is_omap24xx())
797 return;
798
799 if (plane == OMAP_DSS_GFX)
800 REG_FLD_MOD(DISPC_GLOBAL_ALPHA, global_alpha, 7, 0);
801 else if (plane == OMAP_DSS_VIDEO2)
802 REG_FLD_MOD(DISPC_GLOBAL_ALPHA, global_alpha, 23, 16);
803}
804
805static void _dispc_set_pix_inc(enum omap_plane plane, s32 inc)
806{
807 const struct dispc_reg ri_reg[] = { DISPC_GFX_PIXEL_INC,
808 DISPC_VID_PIXEL_INC(0),
809 DISPC_VID_PIXEL_INC(1) };
810
811 dispc_write_reg(ri_reg[plane], inc);
812}
813
814static void _dispc_set_row_inc(enum omap_plane plane, s32 inc)
815{
816 const struct dispc_reg ri_reg[] = { DISPC_GFX_ROW_INC,
817 DISPC_VID_ROW_INC(0),
818 DISPC_VID_ROW_INC(1) };
819
820 dispc_write_reg(ri_reg[plane], inc);
821}
822
823static void _dispc_set_color_mode(enum omap_plane plane,
824 enum omap_color_mode color_mode)
825{
826 u32 m = 0;
827
828 switch (color_mode) {
829 case OMAP_DSS_COLOR_CLUT1:
830 m = 0x0; break;
831 case OMAP_DSS_COLOR_CLUT2:
832 m = 0x1; break;
833 case OMAP_DSS_COLOR_CLUT4:
834 m = 0x2; break;
835 case OMAP_DSS_COLOR_CLUT8:
836 m = 0x3; break;
837 case OMAP_DSS_COLOR_RGB12U:
838 m = 0x4; break;
839 case OMAP_DSS_COLOR_ARGB16:
840 m = 0x5; break;
841 case OMAP_DSS_COLOR_RGB16:
842 m = 0x6; break;
843 case OMAP_DSS_COLOR_RGB24U:
844 m = 0x8; break;
845 case OMAP_DSS_COLOR_RGB24P:
846 m = 0x9; break;
847 case OMAP_DSS_COLOR_YUV2:
848 m = 0xa; break;
849 case OMAP_DSS_COLOR_UYVY:
850 m = 0xb; break;
851 case OMAP_DSS_COLOR_ARGB32:
852 m = 0xc; break;
853 case OMAP_DSS_COLOR_RGBA32:
854 m = 0xd; break;
855 case OMAP_DSS_COLOR_RGBX32:
856 m = 0xe; break;
857 default:
858 BUG(); break;
859 }
860
861 REG_FLD_MOD(dispc_reg_att[plane], m, 4, 1);
862}
863
864static void _dispc_set_channel_out(enum omap_plane plane,
865 enum omap_channel channel)
866{
867 int shift;
868 u32 val;
869
870 switch (plane) {
871 case OMAP_DSS_GFX:
872 shift = 8;
873 break;
874 case OMAP_DSS_VIDEO1:
875 case OMAP_DSS_VIDEO2:
876 shift = 16;
877 break;
878 default:
879 BUG();
880 return;
881 }
882
883 val = dispc_read_reg(dispc_reg_att[plane]);
884 val = FLD_MOD(val, channel, shift, shift);
885 dispc_write_reg(dispc_reg_att[plane], val);
886}
887
888void dispc_set_burst_size(enum omap_plane plane,
889 enum omap_burst_size burst_size)
890{
891 int shift;
892 u32 val;
893
894 enable_clocks(1);
895
896 switch (plane) {
897 case OMAP_DSS_GFX:
898 shift = 6;
899 break;
900 case OMAP_DSS_VIDEO1:
901 case OMAP_DSS_VIDEO2:
902 shift = 14;
903 break;
904 default:
905 BUG();
906 return;
907 }
908
909 val = dispc_read_reg(dispc_reg_att[plane]);
910 val = FLD_MOD(val, burst_size, shift+1, shift);
911 dispc_write_reg(dispc_reg_att[plane], val);
912
913 enable_clocks(0);
914}
915
916static void _dispc_set_vid_color_conv(enum omap_plane plane, bool enable)
917{
918 u32 val;
919
920 BUG_ON(plane == OMAP_DSS_GFX);
921
922 val = dispc_read_reg(dispc_reg_att[plane]);
923 val = FLD_MOD(val, enable, 9, 9);
924 dispc_write_reg(dispc_reg_att[plane], val);
925}
926
927void dispc_enable_replication(enum omap_plane plane, bool enable)
928{
929 int bit;
930
931 if (plane == OMAP_DSS_GFX)
932 bit = 5;
933 else
934 bit = 10;
935
936 enable_clocks(1);
937 REG_FLD_MOD(dispc_reg_att[plane], enable, bit, bit);
938 enable_clocks(0);
939}
940
941void dispc_set_lcd_size(u16 width, u16 height)
942{
943 u32 val;
944 BUG_ON((width > (1 << 11)) || (height > (1 << 11)));
945 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
946 enable_clocks(1);
947 dispc_write_reg(DISPC_SIZE_LCD, val);
948 enable_clocks(0);
949}
950
951void dispc_set_digit_size(u16 width, u16 height)
952{
953 u32 val;
954 BUG_ON((width > (1 << 11)) || (height > (1 << 11)));
955 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
956 enable_clocks(1);
957 dispc_write_reg(DISPC_SIZE_DIG, val);
958 enable_clocks(0);
959}
960
961static void dispc_read_plane_fifo_sizes(void)
962{
963 const struct dispc_reg fsz_reg[] = { DISPC_GFX_FIFO_SIZE_STATUS,
964 DISPC_VID_FIFO_SIZE_STATUS(0),
965 DISPC_VID_FIFO_SIZE_STATUS(1) };
966 u32 size;
967 int plane;
968
969 enable_clocks(1);
970
971 for (plane = 0; plane < ARRAY_SIZE(dispc.fifo_size); ++plane) {
972 if (cpu_is_omap24xx())
973 size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 8, 0);
974 else if (cpu_is_omap34xx())
975 size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 10, 0);
976 else
977 BUG();
978
979 dispc.fifo_size[plane] = size;
980 }
981
982 enable_clocks(0);
983}
984
985u32 dispc_get_plane_fifo_size(enum omap_plane plane)
986{
987 return dispc.fifo_size[plane];
988}
989
990void dispc_setup_plane_fifo(enum omap_plane plane, u32 low, u32 high)
991{
992 const struct dispc_reg ftrs_reg[] = { DISPC_GFX_FIFO_THRESHOLD,
993 DISPC_VID_FIFO_THRESHOLD(0),
994 DISPC_VID_FIFO_THRESHOLD(1) };
995 enable_clocks(1);
996
997 DSSDBG("fifo(%d) low/high old %u/%u, new %u/%u\n",
998 plane,
999 REG_GET(ftrs_reg[plane], 11, 0),
1000 REG_GET(ftrs_reg[plane], 27, 16),
1001 low, high);
1002
1003 if (cpu_is_omap24xx())
1004 dispc_write_reg(ftrs_reg[plane],
1005 FLD_VAL(high, 24, 16) | FLD_VAL(low, 8, 0));
1006 else
1007 dispc_write_reg(ftrs_reg[plane],
1008 FLD_VAL(high, 27, 16) | FLD_VAL(low, 11, 0));
1009
1010 enable_clocks(0);
1011}
1012
1013void dispc_enable_fifomerge(bool enable)
1014{
1015 enable_clocks(1);
1016
1017 DSSDBG("FIFO merge %s\n", enable ? "enabled" : "disabled");
1018 REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 14, 14);
1019
1020 enable_clocks(0);
1021}
1022
1023static void _dispc_set_fir(enum omap_plane plane, int hinc, int vinc)
1024{
1025 u32 val;
1026 const struct dispc_reg fir_reg[] = { DISPC_VID_FIR(0),
1027 DISPC_VID_FIR(1) };
1028
1029 BUG_ON(plane == OMAP_DSS_GFX);
1030
1031 if (cpu_is_omap24xx())
1032 val = FLD_VAL(vinc, 27, 16) | FLD_VAL(hinc, 11, 0);
1033 else
1034 val = FLD_VAL(vinc, 28, 16) | FLD_VAL(hinc, 12, 0);
1035 dispc_write_reg(fir_reg[plane-1], val);
1036}
1037
1038static void _dispc_set_vid_accu0(enum omap_plane plane, int haccu, int vaccu)
1039{
1040 u32 val;
1041 const struct dispc_reg ac0_reg[] = { DISPC_VID_ACCU0(0),
1042 DISPC_VID_ACCU0(1) };
1043
1044 BUG_ON(plane == OMAP_DSS_GFX);
1045
1046 val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0);
1047 dispc_write_reg(ac0_reg[plane-1], val);
1048}
1049
1050static void _dispc_set_vid_accu1(enum omap_plane plane, int haccu, int vaccu)
1051{
1052 u32 val;
1053 const struct dispc_reg ac1_reg[] = { DISPC_VID_ACCU1(0),
1054 DISPC_VID_ACCU1(1) };
1055
1056 BUG_ON(plane == OMAP_DSS_GFX);
1057
1058 val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0);
1059 dispc_write_reg(ac1_reg[plane-1], val);
1060}
1061
1062
1063static void _dispc_set_scaling(enum omap_plane plane,
1064 u16 orig_width, u16 orig_height,
1065 u16 out_width, u16 out_height,
1066 bool ilace, bool five_taps,
1067 bool fieldmode)
1068{
1069 int fir_hinc;
1070 int fir_vinc;
1071 int hscaleup, vscaleup;
1072 int accu0 = 0;
1073 int accu1 = 0;
1074 u32 l;
1075
1076 BUG_ON(plane == OMAP_DSS_GFX);
1077
1078 hscaleup = orig_width <= out_width;
1079 vscaleup = orig_height <= out_height;
1080
1081 _dispc_set_scale_coef(plane, hscaleup, vscaleup, five_taps);
1082
1083 if (!orig_width || orig_width == out_width)
1084 fir_hinc = 0;
1085 else
1086 fir_hinc = 1024 * orig_width / out_width;
1087
1088 if (!orig_height || orig_height == out_height)
1089 fir_vinc = 0;
1090 else
1091 fir_vinc = 1024 * orig_height / out_height;
1092
1093 _dispc_set_fir(plane, fir_hinc, fir_vinc);
1094
1095 l = dispc_read_reg(dispc_reg_att[plane]);
1096 l &= ~((0x0f << 5) | (0x3 << 21));
1097
1098 l |= fir_hinc ? (1 << 5) : 0;
1099 l |= fir_vinc ? (1 << 6) : 0;
1100
1101 l |= hscaleup ? 0 : (1 << 7);
1102 l |= vscaleup ? 0 : (1 << 8);
1103
1104 l |= five_taps ? (1 << 21) : 0;
1105 l |= five_taps ? (1 << 22) : 0;
1106
1107 dispc_write_reg(dispc_reg_att[plane], l);
1108
1109 /*
1110 * field 0 = even field = bottom field
1111 * field 1 = odd field = top field
1112 */
1113 if (ilace && !fieldmode) {
1114 accu1 = 0;
1115 accu0 = (fir_vinc / 2) & 0x3ff;
1116 if (accu0 >= 1024/2) {
1117 accu1 = 1024/2;
1118 accu0 -= accu1;
1119 }
1120 }
1121
1122 _dispc_set_vid_accu0(plane, 0, accu0);
1123 _dispc_set_vid_accu1(plane, 0, accu1);
1124}
1125
1126static void _dispc_set_rotation_attrs(enum omap_plane plane, u8 rotation,
1127 bool mirroring, enum omap_color_mode color_mode)
1128{
1129 if (color_mode == OMAP_DSS_COLOR_YUV2 ||
1130 color_mode == OMAP_DSS_COLOR_UYVY) {
1131 int vidrot = 0;
1132
1133 if (mirroring) {
1134 switch (rotation) {
1135 case OMAP_DSS_ROT_0:
1136 vidrot = 2;
1137 break;
1138 case OMAP_DSS_ROT_90:
1139 vidrot = 1;
1140 break;
1141 case OMAP_DSS_ROT_180:
1142 vidrot = 0;
1143 break;
1144 case OMAP_DSS_ROT_270:
1145 vidrot = 3;
1146 break;
1147 }
1148 } else {
1149 switch (rotation) {
1150 case OMAP_DSS_ROT_0:
1151 vidrot = 0;
1152 break;
1153 case OMAP_DSS_ROT_90:
1154 vidrot = 1;
1155 break;
1156 case OMAP_DSS_ROT_180:
1157 vidrot = 2;
1158 break;
1159 case OMAP_DSS_ROT_270:
1160 vidrot = 3;
1161 break;
1162 }
1163 }
1164
1165 REG_FLD_MOD(dispc_reg_att[plane], vidrot, 13, 12);
1166
1167 if (rotation == OMAP_DSS_ROT_90 || rotation == OMAP_DSS_ROT_270)
1168 REG_FLD_MOD(dispc_reg_att[plane], 0x1, 18, 18);
1169 else
1170 REG_FLD_MOD(dispc_reg_att[plane], 0x0, 18, 18);
1171 } else {
1172 REG_FLD_MOD(dispc_reg_att[plane], 0, 13, 12);
1173 REG_FLD_MOD(dispc_reg_att[plane], 0, 18, 18);
1174 }
1175}
1176
1177static int color_mode_to_bpp(enum omap_color_mode color_mode)
1178{
1179 switch (color_mode) {
1180 case OMAP_DSS_COLOR_CLUT1:
1181 return 1;
1182 case OMAP_DSS_COLOR_CLUT2:
1183 return 2;
1184 case OMAP_DSS_COLOR_CLUT4:
1185 return 4;
1186 case OMAP_DSS_COLOR_CLUT8:
1187 return 8;
1188 case OMAP_DSS_COLOR_RGB12U:
1189 case OMAP_DSS_COLOR_RGB16:
1190 case OMAP_DSS_COLOR_ARGB16:
1191 case OMAP_DSS_COLOR_YUV2:
1192 case OMAP_DSS_COLOR_UYVY:
1193 return 16;
1194 case OMAP_DSS_COLOR_RGB24P:
1195 return 24;
1196 case OMAP_DSS_COLOR_RGB24U:
1197 case OMAP_DSS_COLOR_ARGB32:
1198 case OMAP_DSS_COLOR_RGBA32:
1199 case OMAP_DSS_COLOR_RGBX32:
1200 return 32;
1201 default:
1202 BUG();
1203 }
1204}
1205
1206static s32 pixinc(int pixels, u8 ps)
1207{
1208 if (pixels == 1)
1209 return 1;
1210 else if (pixels > 1)
1211 return 1 + (pixels - 1) * ps;
1212 else if (pixels < 0)
1213 return 1 - (-pixels + 1) * ps;
1214 else
1215 BUG();
1216}
1217
1218static void calc_vrfb_rotation_offset(u8 rotation, bool mirror,
1219 u16 screen_width,
1220 u16 width, u16 height,
1221 enum omap_color_mode color_mode, bool fieldmode,
1222 unsigned int field_offset,
1223 unsigned *offset0, unsigned *offset1,
1224 s32 *row_inc, s32 *pix_inc)
1225{
1226 u8 ps;
1227
1228 /* FIXME CLUT formats */
1229 switch (color_mode) {
1230 case OMAP_DSS_COLOR_CLUT1:
1231 case OMAP_DSS_COLOR_CLUT2:
1232 case OMAP_DSS_COLOR_CLUT4:
1233 case OMAP_DSS_COLOR_CLUT8:
1234 BUG();
1235 return;
1236 case OMAP_DSS_COLOR_YUV2:
1237 case OMAP_DSS_COLOR_UYVY:
1238 ps = 4;
1239 break;
1240 default:
1241 ps = color_mode_to_bpp(color_mode) / 8;
1242 break;
1243 }
1244
1245 DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width,
1246 width, height);
1247
1248 /*
1249 * field 0 = even field = bottom field
1250 * field 1 = odd field = top field
1251 */
1252 switch (rotation + mirror * 4) {
1253 case OMAP_DSS_ROT_0:
1254 case OMAP_DSS_ROT_180:
1255 /*
1256 * If the pixel format is YUV or UYVY divide the width
1257 * of the image by 2 for 0 and 180 degree rotation.
1258 */
1259 if (color_mode == OMAP_DSS_COLOR_YUV2 ||
1260 color_mode == OMAP_DSS_COLOR_UYVY)
1261 width = width >> 1;
1262 case OMAP_DSS_ROT_90:
1263 case OMAP_DSS_ROT_270:
1264 *offset1 = 0;
1265 if (field_offset)
1266 *offset0 = field_offset * screen_width * ps;
1267 else
1268 *offset0 = 0;
1269
1270 *row_inc = pixinc(1 + (screen_width - width) +
1271 (fieldmode ? screen_width : 0),
1272 ps);
1273 *pix_inc = pixinc(1, ps);
1274 break;
1275
1276 case OMAP_DSS_ROT_0 + 4:
1277 case OMAP_DSS_ROT_180 + 4:
1278 /* If the pixel format is YUV or UYVY divide the width
1279 * of the image by 2 for 0 degree and 180 degree
1280 */
1281 if (color_mode == OMAP_DSS_COLOR_YUV2 ||
1282 color_mode == OMAP_DSS_COLOR_UYVY)
1283 width = width >> 1;
1284 case OMAP_DSS_ROT_90 + 4:
1285 case OMAP_DSS_ROT_270 + 4:
1286 *offset1 = 0;
1287 if (field_offset)
1288 *offset0 = field_offset * screen_width * ps;
1289 else
1290 *offset0 = 0;
1291 *row_inc = pixinc(1 - (screen_width + width) -
1292 (fieldmode ? screen_width : 0),
1293 ps);
1294 *pix_inc = pixinc(1, ps);
1295 break;
1296
1297 default:
1298 BUG();
1299 }
1300}
1301
1302static void calc_dma_rotation_offset(u8 rotation, bool mirror,
1303 u16 screen_width,
1304 u16 width, u16 height,
1305 enum omap_color_mode color_mode, bool fieldmode,
1306 unsigned int field_offset,
1307 unsigned *offset0, unsigned *offset1,
1308 s32 *row_inc, s32 *pix_inc)
1309{
1310 u8 ps;
1311 u16 fbw, fbh;
1312
1313 /* FIXME CLUT formats */
1314 switch (color_mode) {
1315 case OMAP_DSS_COLOR_CLUT1:
1316 case OMAP_DSS_COLOR_CLUT2:
1317 case OMAP_DSS_COLOR_CLUT4:
1318 case OMAP_DSS_COLOR_CLUT8:
1319 BUG();
1320 return;
1321 default:
1322 ps = color_mode_to_bpp(color_mode) / 8;
1323 break;
1324 }
1325
1326 DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width,
1327 width, height);
1328
1329 /* width & height are overlay sizes, convert to fb sizes */
1330
1331 if (rotation == OMAP_DSS_ROT_0 || rotation == OMAP_DSS_ROT_180) {
1332 fbw = width;
1333 fbh = height;
1334 } else {
1335 fbw = height;
1336 fbh = width;
1337 }
1338
1339 /*
1340 * field 0 = even field = bottom field
1341 * field 1 = odd field = top field
1342 */
1343 switch (rotation + mirror * 4) {
1344 case OMAP_DSS_ROT_0:
1345 *offset1 = 0;
1346 if (field_offset)
1347 *offset0 = *offset1 + field_offset * screen_width * ps;
1348 else
1349 *offset0 = *offset1;
1350 *row_inc = pixinc(1 + (screen_width - fbw) +
1351 (fieldmode ? screen_width : 0),
1352 ps);
1353 *pix_inc = pixinc(1, ps);
1354 break;
1355 case OMAP_DSS_ROT_90:
1356 *offset1 = screen_width * (fbh - 1) * ps;
1357 if (field_offset)
1358 *offset0 = *offset1 + field_offset * ps;
1359 else
1360 *offset0 = *offset1;
1361 *row_inc = pixinc(screen_width * (fbh - 1) + 1 +
1362 (fieldmode ? 1 : 0), ps);
1363 *pix_inc = pixinc(-screen_width, ps);
1364 break;
1365 case OMAP_DSS_ROT_180:
1366 *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps;
1367 if (field_offset)
1368 *offset0 = *offset1 - field_offset * screen_width * ps;
1369 else
1370 *offset0 = *offset1;
1371 *row_inc = pixinc(-1 -
1372 (screen_width - fbw) -
1373 (fieldmode ? screen_width : 0),
1374 ps);
1375 *pix_inc = pixinc(-1, ps);
1376 break;
1377 case OMAP_DSS_ROT_270:
1378 *offset1 = (fbw - 1) * ps;
1379 if (field_offset)
1380 *offset0 = *offset1 - field_offset * ps;
1381 else
1382 *offset0 = *offset1;
1383 *row_inc = pixinc(-screen_width * (fbh - 1) - 1 -
1384 (fieldmode ? 1 : 0), ps);
1385 *pix_inc = pixinc(screen_width, ps);
1386 break;
1387
1388 /* mirroring */
1389 case OMAP_DSS_ROT_0 + 4:
1390 *offset1 = (fbw - 1) * ps;
1391 if (field_offset)
1392 *offset0 = *offset1 + field_offset * screen_width * ps;
1393 else
1394 *offset0 = *offset1;
1395 *row_inc = pixinc(screen_width * 2 - 1 +
1396 (fieldmode ? screen_width : 0),
1397 ps);
1398 *pix_inc = pixinc(-1, ps);
1399 break;
1400
1401 case OMAP_DSS_ROT_90 + 4:
1402 *offset1 = 0;
1403 if (field_offset)
1404 *offset0 = *offset1 + field_offset * ps;
1405 else
1406 *offset0 = *offset1;
1407 *row_inc = pixinc(-screen_width * (fbh - 1) + 1 +
1408 (fieldmode ? 1 : 0),
1409 ps);
1410 *pix_inc = pixinc(screen_width, ps);
1411 break;
1412
1413 case OMAP_DSS_ROT_180 + 4:
1414 *offset1 = screen_width * (fbh - 1) * ps;
1415 if (field_offset)
1416 *offset0 = *offset1 - field_offset * screen_width * ps;
1417 else
1418 *offset0 = *offset1;
1419 *row_inc = pixinc(1 - screen_width * 2 -
1420 (fieldmode ? screen_width : 0),
1421 ps);
1422 *pix_inc = pixinc(1, ps);
1423 break;
1424
1425 case OMAP_DSS_ROT_270 + 4:
1426 *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps;
1427 if (field_offset)
1428 *offset0 = *offset1 - field_offset * ps;
1429 else
1430 *offset0 = *offset1;
1431 *row_inc = pixinc(screen_width * (fbh - 1) - 1 -
1432 (fieldmode ? 1 : 0),
1433 ps);
1434 *pix_inc = pixinc(-screen_width, ps);
1435 break;
1436
1437 default:
1438 BUG();
1439 }
1440}
1441
1442static unsigned long calc_fclk_five_taps(u16 width, u16 height,
1443 u16 out_width, u16 out_height, enum omap_color_mode color_mode)
1444{
1445 u32 fclk = 0;
1446 /* FIXME venc pclk? */
1447 u64 tmp, pclk = dispc_pclk_rate();
1448
1449 if (height > out_height) {
1450 /* FIXME get real display PPL */
1451 unsigned int ppl = 800;
1452
1453 tmp = pclk * height * out_width;
1454 do_div(tmp, 2 * out_height * ppl);
1455 fclk = tmp;
1456
2d9c5597
VS		 1457 if (height > 2 * out_height) {
1458 if (ppl == out_width)
1459 return 0;
1460
80c39712
TV		 1461 tmp = pclk * (height - 2 * out_height) * out_width;
1462 do_div(tmp, 2 * out_height * (ppl - out_width));
1463 fclk = max(fclk, (u32) tmp);
1464 }
1465 }
1466
1467 if (width > out_width) {
1468 tmp = pclk * width;
1469 do_div(tmp, out_width);
1470 fclk = max(fclk, (u32) tmp);
1471
1472 if (color_mode == OMAP_DSS_COLOR_RGB24U)
1473 fclk <<= 1;
1474 }
1475
1476 return fclk;
1477}
1478
1479static unsigned long calc_fclk(u16 width, u16 height,
1480 u16 out_width, u16 out_height)
1481{
1482 unsigned int hf, vf;
1483
1484 /*
1485 * FIXME how to determine the 'A' factor
1486 * for the no downscaling case ?
1487 */
1488
1489 if (width > 3 * out_width)
1490 hf = 4;
1491 else if (width > 2 * out_width)
1492 hf = 3;
1493 else if (width > out_width)
1494 hf = 2;
1495 else
1496 hf = 1;
1497
1498 if (height > out_height)
1499 vf = 2;
1500 else
1501 vf = 1;
1502
1503 /* FIXME venc pclk? */
1504 return dispc_pclk_rate() * vf * hf;
1505}
1506
1507void dispc_set_channel_out(enum omap_plane plane, enum omap_channel channel_out)
1508{
1509 enable_clocks(1);
1510 _dispc_set_channel_out(plane, channel_out);
1511 enable_clocks(0);
1512}
1513
1514static int _dispc_setup_plane(enum omap_plane plane,
1515 u32 paddr, u16 screen_width,
1516 u16 pos_x, u16 pos_y,
1517 u16 width, u16 height,
1518 u16 out_width, u16 out_height,
1519 enum omap_color_mode color_mode,
1520 bool ilace,
1521 enum omap_dss_rotation_type rotation_type,
1522 u8 rotation, int mirror,
1523 u8 global_alpha)
1524{
1525 const int maxdownscale = cpu_is_omap34xx() ? 4 : 2;
1526 bool five_taps = 0;
1527 bool fieldmode = 0;
1528 int cconv = 0;
1529 unsigned offset0, offset1;
1530 s32 row_inc;
1531 s32 pix_inc;
1532 u16 frame_height = height;
1533 unsigned int field_offset = 0;
1534
1535 if (paddr == 0)
1536 return -EINVAL;
1537
1538 if (ilace && height == out_height)
1539 fieldmode = 1;
1540
1541 if (ilace) {
1542 if (fieldmode)
1543 height /= 2;
1544 pos_y /= 2;
1545 out_height /= 2;
1546
1547 DSSDBG("adjusting for ilace: height %d, pos_y %d, "
1548 "out_height %d\n",
1549 height, pos_y, out_height);
1550 }
1551
1552 if (plane == OMAP_DSS_GFX) {
1553 if (width != out_width || height != out_height)
1554 return -EINVAL;
1555
1556 switch (color_mode) {
1557 case OMAP_DSS_COLOR_ARGB16:
1558 case OMAP_DSS_COLOR_ARGB32:
1559 case OMAP_DSS_COLOR_RGBA32:
1560 case OMAP_DSS_COLOR_RGBX32:
1561 if (cpu_is_omap24xx())
1562 return -EINVAL;
1563 /* fall through */
1564 case OMAP_DSS_COLOR_RGB12U:
1565 case OMAP_DSS_COLOR_RGB16:
1566 case OMAP_DSS_COLOR_RGB24P:
1567 case OMAP_DSS_COLOR_RGB24U:
1568 break;
1569
1570 default:
1571 return -EINVAL;
1572 }
1573 } else {
1574 /* video plane */
1575
1576 unsigned long fclk = 0;
1577
1578 if (out_width < width / maxdownscale ||
1579 out_width > width * 8)
1580 return -EINVAL;
1581
1582 if (out_height < height / maxdownscale ||
1583 out_height > height * 8)
1584 return -EINVAL;
1585
1586 switch (color_mode) {
1587 case OMAP_DSS_COLOR_RGBX32:
1588 case OMAP_DSS_COLOR_RGB12U:
1589 if (cpu_is_omap24xx())
1590 return -EINVAL;
1591 /* fall through */
1592 case OMAP_DSS_COLOR_RGB16:
1593 case OMAP_DSS_COLOR_RGB24P:
1594 case OMAP_DSS_COLOR_RGB24U:
1595 break;
1596
1597 case OMAP_DSS_COLOR_ARGB16:
1598 case OMAP_DSS_COLOR_ARGB32:
1599 case OMAP_DSS_COLOR_RGBA32:
1600 if (cpu_is_omap24xx())
1601 return -EINVAL;
1602 if (plane == OMAP_DSS_VIDEO1)
1603 return -EINVAL;
1604 break;
1605
1606 case OMAP_DSS_COLOR_YUV2:
1607 case OMAP_DSS_COLOR_UYVY:
1608 cconv = 1;
1609 break;
1610
1611 default:
1612 return -EINVAL;
1613 }
1614
1615 /* Must use 5-tap filter? */
1616 five_taps = height > out_height * 2;
1617
1618 if (!five_taps) {
1619 fclk = calc_fclk(width, height,
1620 out_width, out_height);
1621
1622 /* Try 5-tap filter if 3-tap fclk is too high */
1623 if (cpu_is_omap34xx() && height > out_height &&
1624 fclk > dispc_fclk_rate())
1625 five_taps = true;
1626 }
1627
1628 if (width > (2048 >> five_taps)) {
1629 DSSERR("failed to set up scaling, fclk too low\n");
1630 return -EINVAL;
1631 }
1632
1633 if (five_taps)
1634 fclk = calc_fclk_five_taps(width, height,
1635 out_width, out_height, color_mode);
1636
1637 DSSDBG("required fclk rate = %lu Hz\n", fclk);
1638 DSSDBG("current fclk rate = %lu Hz\n", dispc_fclk_rate());
1639
2d9c5597 1640 if (!fclk || fclk > dispc_fclk_rate()) {
80c39712
TV		 1641 DSSERR("failed to set up scaling, "
1642 "required fclk rate = %lu Hz, "
1643 "current fclk rate = %lu Hz\n",
1644 fclk, dispc_fclk_rate());
1645 return -EINVAL;
1646 }
1647 }
1648
1649 if (ilace && !fieldmode) {
1650 /*
1651 * when downscaling the bottom field may have to start several
1652 * source lines below the top field. Unfortunately ACCUI
1653 * registers will only hold the fractional part of the offset
1654 * so the integer part must be added to the base address of the
1655 * bottom field.
1656 */
1657 if (!height || height == out_height)
1658 field_offset = 0;
1659 else
1660 field_offset = height / out_height / 2;
1661 }
1662
1663 /* Fields are independent but interleaved in memory. */
1664 if (fieldmode)
1665 field_offset = 1;
1666
1667 if (rotation_type == OMAP_DSS_ROT_DMA)
1668 calc_dma_rotation_offset(rotation, mirror,
1669 screen_width, width, frame_height, color_mode,
1670 fieldmode, field_offset,
1671 &offset0, &offset1, &row_inc, &pix_inc);
1672 else
1673 calc_vrfb_rotation_offset(rotation, mirror,
1674 screen_width, width, frame_height, color_mode,
1675 fieldmode, field_offset,
1676 &offset0, &offset1, &row_inc, &pix_inc);
1677
1678 DSSDBG("offset0 %u, offset1 %u, row_inc %d, pix_inc %d\n",
1679 offset0, offset1, row_inc, pix_inc);
1680
1681 _dispc_set_color_mode(plane, color_mode);
1682
1683 _dispc_set_plane_ba0(plane, paddr + offset0);
1684 _dispc_set_plane_ba1(plane, paddr + offset1);
1685
1686 _dispc_set_row_inc(plane, row_inc);
1687 _dispc_set_pix_inc(plane, pix_inc);
1688
1689 DSSDBG("%d,%d %dx%d -> %dx%d\n", pos_x, pos_y, width, height,
1690 out_width, out_height);
1691
1692 _dispc_set_plane_pos(plane, pos_x, pos_y);
1693
1694 _dispc_set_pic_size(plane, width, height);
1695
1696 if (plane != OMAP_DSS_GFX) {
1697 _dispc_set_scaling(plane, width, height,
1698 out_width, out_height,
1699 ilace, five_taps, fieldmode);
1700 _dispc_set_vid_size(plane, out_width, out_height);
1701 _dispc_set_vid_color_conv(plane, cconv);
1702 }
1703
1704 _dispc_set_rotation_attrs(plane, rotation, mirror, color_mode);
1705
1706 if (plane != OMAP_DSS_VIDEO1)
1707 _dispc_setup_global_alpha(plane, global_alpha);
1708
1709 return 0;
1710}
1711
1712static void _dispc_enable_plane(enum omap_plane plane, bool enable)
1713{
1714 REG_FLD_MOD(dispc_reg_att[plane], enable ? 1 : 0, 0, 0);
1715}
1716
1717static void dispc_disable_isr(void *data, u32 mask)
1718{
1719 struct completion *compl = data;
1720 complete(compl);
1721}
1722
1723static void _enable_lcd_out(bool enable)
1724{
1725 REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 0, 0);
1726}
1727
a2faee84 1728static void dispc_enable_lcd_out(bool enable)
80c39712
TV		 1729{
1730 struct completion frame_done_completion;
1731 bool is_on;
1732 int r;
1733
1734 enable_clocks(1);
1735
1736 /* When we disable LCD output, we need to wait until frame is done.
1737 * Otherwise the DSS is still working, and turning off the clocks
1738 * prevents DSS from going to OFF mode */
1739 is_on = REG_GET(DISPC_CONTROL, 0, 0);
1740
1741 if (!enable && is_on) {
1742 init_completion(&frame_done_completion);
1743
1744 r = omap_dispc_register_isr(dispc_disable_isr,
1745 &frame_done_completion,
1746 DISPC_IRQ_FRAMEDONE);
1747
1748 if (r)
1749 DSSERR("failed to register FRAMEDONE isr\n");
1750 }
1751
1752 _enable_lcd_out(enable);
1753
1754 if (!enable && is_on) {
1755 if (!wait_for_completion_timeout(&frame_done_completion,
1756 msecs_to_jiffies(100)))
1757 DSSERR("timeout waiting for FRAME DONE\n");
1758
1759 r = omap_dispc_unregister_isr(dispc_disable_isr,
1760 &frame_done_completion,
1761 DISPC_IRQ_FRAMEDONE);
1762
1763 if (r)
1764 DSSERR("failed to unregister FRAMEDONE isr\n");
1765 }
1766
1767 enable_clocks(0);
1768}
1769
1770static void _enable_digit_out(bool enable)
1771{
1772 REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 1, 1);
1773}
1774
a2faee84 1775static void dispc_enable_digit_out(bool enable)
80c39712
TV		 1776{
1777 struct completion frame_done_completion;
1778 int r;
1779
1780 enable_clocks(1);
1781
1782 if (REG_GET(DISPC_CONTROL, 1, 1) == enable) {
1783 enable_clocks(0);
1784 return;
1785 }
1786
1787 if (enable) {
1788 unsigned long flags;
1789 /* When we enable digit output, we'll get an extra digit
1790 * sync lost interrupt, that we need to ignore */
1791 spin_lock_irqsave(&dispc.irq_lock, flags);
1792 dispc.irq_error_mask &= ~DISPC_IRQ_SYNC_LOST_DIGIT;
1793 _omap_dispc_set_irqs();
1794 spin_unlock_irqrestore(&dispc.irq_lock, flags);
1795 }
1796
1797 /* When we disable digit output, we need to wait until fields are done.
1798 * Otherwise the DSS is still working, and turning off the clocks
1799 * prevents DSS from going to OFF mode. And when enabling, we need to
1800 * wait for the extra sync losts */
1801 init_completion(&frame_done_completion);
1802
1803 r = omap_dispc_register_isr(dispc_disable_isr, &frame_done_completion,
1804 DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD);
1805 if (r)
1806 DSSERR("failed to register EVSYNC isr\n");
1807
1808 _enable_digit_out(enable);
1809
1810 /* XXX I understand from TRM that we should only wait for the
1811 * current field to complete. But it seems we have to wait
1812 * for both fields */
1813 if (!wait_for_completion_timeout(&frame_done_completion,
1814 msecs_to_jiffies(100)))
1815 DSSERR("timeout waiting for EVSYNC\n");
1816
1817 if (!wait_for_completion_timeout(&frame_done_completion,
1818 msecs_to_jiffies(100)))
1819 DSSERR("timeout waiting for EVSYNC\n");
1820
1821 r = omap_dispc_unregister_isr(dispc_disable_isr,
1822 &frame_done_completion,
1823 DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD);
1824 if (r)
1825 DSSERR("failed to unregister EVSYNC isr\n");
1826
1827 if (enable) {
1828 unsigned long flags;
1829 spin_lock_irqsave(&dispc.irq_lock, flags);
1830 dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR;
1831 dispc_write_reg(DISPC_IRQSTATUS, DISPC_IRQ_SYNC_LOST_DIGIT);
1832 _omap_dispc_set_irqs();
1833 spin_unlock_irqrestore(&dispc.irq_lock, flags);
1834 }
1835
1836 enable_clocks(0);
1837}
1838
a2faee84
TV		 1839bool dispc_is_channel_enabled(enum omap_channel channel)
1840{
1841 if (channel == OMAP_DSS_CHANNEL_LCD)
1842 return !!REG_GET(DISPC_CONTROL, 0, 0);
1843 else if (channel == OMAP_DSS_CHANNEL_DIGIT)
1844 return !!REG_GET(DISPC_CONTROL, 1, 1);
1845 else
1846 BUG();
1847}
1848
1849void dispc_enable_channel(enum omap_channel channel, bool enable)
1850{
1851 if (channel == OMAP_DSS_CHANNEL_LCD)
1852 dispc_enable_lcd_out(enable);
1853 else if (channel == OMAP_DSS_CHANNEL_DIGIT)
1854 dispc_enable_digit_out(enable);
1855 else
1856 BUG();
1857}
1858
80c39712
TV		 1859void dispc_lcd_enable_signal_polarity(bool act_high)
1860{
1861 enable_clocks(1);
1862 REG_FLD_MOD(DISPC_CONTROL, act_high ? 1 : 0, 29, 29);
1863 enable_clocks(0);
1864}
1865
1866void dispc_lcd_enable_signal(bool enable)
1867{
1868 enable_clocks(1);
1869 REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 28, 28);
1870 enable_clocks(0);
1871}
1872
1873void dispc_pck_free_enable(bool enable)
1874{
1875 enable_clocks(1);
1876 REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 27, 27);
1877 enable_clocks(0);
1878}
1879
1880void dispc_enable_fifohandcheck(bool enable)
1881{
1882 enable_clocks(1);
1883 REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 16, 16);
1884 enable_clocks(0);
1885}
1886
1887
1888void dispc_set_lcd_display_type(enum omap_lcd_display_type type)
1889{
1890 int mode;
1891
1892 switch (type) {
1893 case OMAP_DSS_LCD_DISPLAY_STN:
1894 mode = 0;
1895 break;
1896
1897 case OMAP_DSS_LCD_DISPLAY_TFT:
1898 mode = 1;
1899 break;
1900
1901 default:
1902 BUG();
1903 return;
1904 }
1905
1906 enable_clocks(1);
1907 REG_FLD_MOD(DISPC_CONTROL, mode, 3, 3);
1908 enable_clocks(0);
1909}
1910
1911void dispc_set_loadmode(enum omap_dss_load_mode mode)
1912{
1913 enable_clocks(1);
1914 REG_FLD_MOD(DISPC_CONFIG, mode, 2, 1);
1915 enable_clocks(0);
1916}
1917
1918
1919void dispc_set_default_color(enum omap_channel channel, u32 color)
1920{
1921 const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0,
1922 DISPC_DEFAULT_COLOR1 };
1923
1924 enable_clocks(1);
1925 dispc_write_reg(def_reg[channel], color);
1926 enable_clocks(0);
1927}
1928
1929u32 dispc_get_default_color(enum omap_channel channel)
1930{
1931 const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0,
1932 DISPC_DEFAULT_COLOR1 };
1933 u32 l;
1934
1935 BUG_ON(channel != OMAP_DSS_CHANNEL_DIGIT &&
1936 channel != OMAP_DSS_CHANNEL_LCD);
1937
1938 enable_clocks(1);
1939 l = dispc_read_reg(def_reg[channel]);
1940 enable_clocks(0);
1941
1942 return l;
1943}
1944
1945void dispc_set_trans_key(enum omap_channel ch,
1946 enum omap_dss_trans_key_type type,
1947 u32 trans_key)
1948{
1949 const struct dispc_reg tr_reg[] = {
1950 DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 };
1951
1952 enable_clocks(1);
1953 if (ch == OMAP_DSS_CHANNEL_LCD)
1954 REG_FLD_MOD(DISPC_CONFIG, type, 11, 11);
1955 else /* OMAP_DSS_CHANNEL_DIGIT */
1956 REG_FLD_MOD(DISPC_CONFIG, type, 13, 13);
1957
1958 dispc_write_reg(tr_reg[ch], trans_key);
1959 enable_clocks(0);
1960}
1961
1962void dispc_get_trans_key(enum omap_channel ch,
1963 enum omap_dss_trans_key_type *type,
1964 u32 *trans_key)
1965{
1966 const struct dispc_reg tr_reg[] = {
1967 DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 };
1968
1969 enable_clocks(1);
1970 if (type) {
1971 if (ch == OMAP_DSS_CHANNEL_LCD)
1972 *type = REG_GET(DISPC_CONFIG, 11, 11);
1973 else if (ch == OMAP_DSS_CHANNEL_DIGIT)
1974 *type = REG_GET(DISPC_CONFIG, 13, 13);
1975 else
1976 BUG();
1977 }
1978
1979 if (trans_key)
1980 *trans_key = dispc_read_reg(tr_reg[ch]);
1981 enable_clocks(0);
1982}
1983
1984void dispc_enable_trans_key(enum omap_channel ch, bool enable)
1985{
1986 enable_clocks(1);
1987 if (ch == OMAP_DSS_CHANNEL_LCD)
1988 REG_FLD_MOD(DISPC_CONFIG, enable, 10, 10);
1989 else /* OMAP_DSS_CHANNEL_DIGIT */
1990 REG_FLD_MOD(DISPC_CONFIG, enable, 12, 12);
1991 enable_clocks(0);
1992}
1993void dispc_enable_alpha_blending(enum omap_channel ch, bool enable)
1994{
1995 if (cpu_is_omap24xx())
1996 return;
1997
1998 enable_clocks(1);
1999 if (ch == OMAP_DSS_CHANNEL_LCD)
2000 REG_FLD_MOD(DISPC_CONFIG, enable, 18, 18);
2001 else /* OMAP_DSS_CHANNEL_DIGIT */
2002 REG_FLD_MOD(DISPC_CONFIG, enable, 19, 19);
2003 enable_clocks(0);
2004}
2005bool dispc_alpha_blending_enabled(enum omap_channel ch)
2006{
2007 bool enabled;
2008
2009 if (cpu_is_omap24xx())
2010 return false;
2011
2012 enable_clocks(1);
2013 if (ch == OMAP_DSS_CHANNEL_LCD)
2014 enabled = REG_GET(DISPC_CONFIG, 18, 18);
2015 else if (ch == OMAP_DSS_CHANNEL_DIGIT)
2016 enabled = REG_GET(DISPC_CONFIG, 18, 18);
2017 else
2018 BUG();
2019 enable_clocks(0);
2020
2021 return enabled;
2022
2023}
2024
2025
2026bool dispc_trans_key_enabled(enum omap_channel ch)
2027{
2028 bool enabled;
2029
2030 enable_clocks(1);
2031 if (ch == OMAP_DSS_CHANNEL_LCD)
2032 enabled = REG_GET(DISPC_CONFIG, 10, 10);
2033 else if (ch == OMAP_DSS_CHANNEL_DIGIT)
2034 enabled = REG_GET(DISPC_CONFIG, 12, 12);
2035 else
2036 BUG();
2037 enable_clocks(0);
2038
2039 return enabled;
2040}
2041
2042
2043void dispc_set_tft_data_lines(u8 data_lines)
2044{
2045 int code;
2046
2047 switch (data_lines) {
2048 case 12:
2049 code = 0;
2050 break;
2051 case 16:
2052 code = 1;
2053 break;
2054 case 18:
2055 code = 2;
2056 break;
2057 case 24:
2058 code = 3;
2059 break;
2060 default:
2061 BUG();
2062 return;
2063 }
2064
2065 enable_clocks(1);
2066 REG_FLD_MOD(DISPC_CONTROL, code, 9, 8);
2067 enable_clocks(0);
2068}
2069
2070void dispc_set_parallel_interface_mode(enum omap_parallel_interface_mode mode)
2071{
2072 u32 l;
2073 int stallmode;
2074 int gpout0 = 1;
2075 int gpout1;
2076
2077 switch (mode) {
2078 case OMAP_DSS_PARALLELMODE_BYPASS:
2079 stallmode = 0;
2080 gpout1 = 1;
2081 break;
2082
2083 case OMAP_DSS_PARALLELMODE_RFBI:
2084 stallmode = 1;
2085 gpout1 = 0;
2086 break;
2087
2088 case OMAP_DSS_PARALLELMODE_DSI:
2089 stallmode = 1;
2090 gpout1 = 1;
2091 break;
2092
2093 default:
2094 BUG();
2095 return;
2096 }
2097
2098 enable_clocks(1);
2099
2100 l = dispc_read_reg(DISPC_CONTROL);
2101
2102 l = FLD_MOD(l, stallmode, 11, 11);
2103 l = FLD_MOD(l, gpout0, 15, 15);
2104 l = FLD_MOD(l, gpout1, 16, 16);
2105
2106 dispc_write_reg(DISPC_CONTROL, l);
2107
2108 enable_clocks(0);
2109}
2110
2111static bool _dispc_lcd_timings_ok(int hsw, int hfp, int hbp,
2112 int vsw, int vfp, int vbp)
2113{
2114 if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) {
2115 if (hsw < 1 || hsw > 64 ||
2116 hfp < 1 || hfp > 256 ||
2117 hbp < 1 || hbp > 256 ||
2118 vsw < 1 || vsw > 64 ||
2119 vfp < 0 || vfp > 255 ||
2120 vbp < 0 || vbp > 255)
2121 return false;
2122 } else {
2123 if (hsw < 1 || hsw > 256 ||
2124 hfp < 1 || hfp > 4096 ||
2125 hbp < 1 || hbp > 4096 ||
2126 vsw < 1 || vsw > 256 ||
2127 vfp < 0 || vfp > 4095 ||
2128 vbp < 0 || vbp > 4095)
2129 return false;
2130 }
2131
2132 return true;
2133}
2134
2135bool dispc_lcd_timings_ok(struct omap_video_timings *timings)
2136{
2137 return _dispc_lcd_timings_ok(timings->hsw, timings->hfp,
2138 timings->hbp, timings->vsw,
2139 timings->vfp, timings->vbp);
2140}
2141
2142static void _dispc_set_lcd_timings(int hsw, int hfp, int hbp,
2143 int vsw, int vfp, int vbp)
2144{
2145 u32 timing_h, timing_v;
2146
2147 if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) {
2148 timing_h = FLD_VAL(hsw-1, 5, 0) | FLD_VAL(hfp-1, 15, 8) |
2149 FLD_VAL(hbp-1, 27, 20);
2150
2151 timing_v = FLD_VAL(vsw-1, 5, 0) | FLD_VAL(vfp, 15, 8) |
2152 FLD_VAL(vbp, 27, 20);
2153 } else {
2154 timing_h = FLD_VAL(hsw-1, 7, 0) | FLD_VAL(hfp-1, 19, 8) |
2155 FLD_VAL(hbp-1, 31, 20);
2156
2157 timing_v = FLD_VAL(vsw-1, 7, 0) | FLD_VAL(vfp, 19, 8) |
2158 FLD_VAL(vbp, 31, 20);
2159 }
2160
2161 enable_clocks(1);
2162 dispc_write_reg(DISPC_TIMING_H, timing_h);
2163 dispc_write_reg(DISPC_TIMING_V, timing_v);
2164 enable_clocks(0);
2165}
2166
2167/* change name to mode? */
2168void dispc_set_lcd_timings(struct omap_video_timings *timings)
2169{
2170 unsigned xtot, ytot;
2171 unsigned long ht, vt;
2172
2173 if (!_dispc_lcd_timings_ok(timings->hsw, timings->hfp,
2174 timings->hbp, timings->vsw,
2175 timings->vfp, timings->vbp))
2176 BUG();
2177
2178 _dispc_set_lcd_timings(timings->hsw, timings->hfp, timings->hbp,
2179 timings->vsw, timings->vfp, timings->vbp);
2180
2181 dispc_set_lcd_size(timings->x_res, timings->y_res);
2182
2183 xtot = timings->x_res + timings->hfp + timings->hsw + timings->hbp;
2184 ytot = timings->y_res + timings->vfp + timings->vsw + timings->vbp;
2185
2186 ht = (timings->pixel_clock * 1000) / xtot;
2187 vt = (timings->pixel_clock * 1000) / xtot / ytot;
2188
2189 DSSDBG("xres %u yres %u\n", timings->x_res, timings->y_res);
2190 DSSDBG("pck %u\n", timings->pixel_clock);
2191 DSSDBG("hsw %d hfp %d hbp %d vsw %d vfp %d vbp %d\n",
2192 timings->hsw, timings->hfp, timings->hbp,
2193 timings->vsw, timings->vfp, timings->vbp);
2194
2195 DSSDBG("hsync %luHz, vsync %luHz\n", ht, vt);
2196}
2197
2198static void dispc_set_lcd_divisor(u16 lck_div, u16 pck_div)
2199{
2200 BUG_ON(lck_div < 1);
2201 BUG_ON(pck_div < 2);
2202
2203 enable_clocks(1);
2204 dispc_write_reg(DISPC_DIVISOR,
2205 FLD_VAL(lck_div, 23, 16) | FLD_VAL(pck_div, 7, 0));
2206 enable_clocks(0);
2207}
2208
2209static void dispc_get_lcd_divisor(int *lck_div, int *pck_div)
2210{
2211 u32 l;
2212 l = dispc_read_reg(DISPC_DIVISOR);
2213 *lck_div = FLD_GET(l, 23, 16);
2214 *pck_div = FLD_GET(l, 7, 0);
2215}
2216
2217unsigned long dispc_fclk_rate(void)
2218{
2219 unsigned long r = 0;
2220
63cf28ac 2221 if (dss_get_dispc_clk_source() == DSS_SRC_DSS1_ALWON_FCLK)
80c39712
TV		 2222 r = dss_clk_get_rate(DSS_CLK_FCK1);
2223 else
2224#ifdef CONFIG_OMAP2_DSS_DSI
2225 r = dsi_get_dsi1_pll_rate();
2226#else
2227 BUG();
2228#endif
2229 return r;
2230}
2231
2232unsigned long dispc_lclk_rate(void)
2233{
2234 int lcd;
2235 unsigned long r;
2236 u32 l;
2237
2238 l = dispc_read_reg(DISPC_DIVISOR);
2239
2240 lcd = FLD_GET(l, 23, 16);
2241
2242 r = dispc_fclk_rate();
2243
2244 return r / lcd;
2245}
2246
2247unsigned long dispc_pclk_rate(void)
2248{
2249 int lcd, pcd;
2250 unsigned long r;
2251 u32 l;
2252
2253 l = dispc_read_reg(DISPC_DIVISOR);
2254
2255 lcd = FLD_GET(l, 23, 16);
2256 pcd = FLD_GET(l, 7, 0);
2257
2258 r = dispc_fclk_rate();
2259
2260 return r / lcd / pcd;
2261}
2262
2263void dispc_dump_clocks(struct seq_file *s)
2264{
2265 int lcd, pcd;
2266
2267 enable_clocks(1);
2268
2269 dispc_get_lcd_divisor(&lcd, &pcd);
2270
2271 seq_printf(s, "- DISPC -\n");
2272
2273 seq_printf(s, "dispc fclk source = %s\n",
63cf28ac 2274 dss_get_dispc_clk_source() == DSS_SRC_DSS1_ALWON_FCLK ?
80c39712
TV		 2275 "dss1_alwon_fclk" : "dsi1_pll_fclk");
2276
2277 seq_printf(s, "fck\t\t%-16lu\n", dispc_fclk_rate());
2278 seq_printf(s, "lck\t\t%-16lulck div\t%u\n", dispc_lclk_rate(), lcd);
2279 seq_printf(s, "pck\t\t%-16lupck div\t%u\n", dispc_pclk_rate(), pcd);
2280
2281 enable_clocks(0);
2282}
2283
dfc0fd8d
TV		 2284#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
2285void dispc_dump_irqs(struct seq_file *s)
2286{
2287 unsigned long flags;
2288 struct dispc_irq_stats stats;
2289
2290 spin_lock_irqsave(&dispc.irq_stats_lock, flags);
2291
2292 stats = dispc.irq_stats;
2293 memset(&dispc.irq_stats, 0, sizeof(dispc.irq_stats));
2294 dispc.irq_stats.last_reset = jiffies;
2295
2296 spin_unlock_irqrestore(&dispc.irq_stats_lock, flags);
2297
2298 seq_printf(s, "period %u ms\n",
2299 jiffies_to_msecs(jiffies - stats.last_reset));
2300
2301 seq_printf(s, "irqs %d\n", stats.irq_count);
2302#define PIS(x) \
2303 seq_printf(s, "%-20s %10d\n", #x, stats.irqs[ffs(DISPC_IRQ_##x)-1]);
2304
2305 PIS(FRAMEDONE);
2306 PIS(VSYNC);
2307 PIS(EVSYNC_EVEN);
2308 PIS(EVSYNC_ODD);
2309 PIS(ACBIAS_COUNT_STAT);
2310 PIS(PROG_LINE_NUM);
2311 PIS(GFX_FIFO_UNDERFLOW);
2312 PIS(GFX_END_WIN);
2313 PIS(PAL_GAMMA_MASK);
2314 PIS(OCP_ERR);
2315 PIS(VID1_FIFO_UNDERFLOW);
2316 PIS(VID1_END_WIN);
2317 PIS(VID2_FIFO_UNDERFLOW);
2318 PIS(VID2_END_WIN);
2319 PIS(SYNC_LOST);
2320 PIS(SYNC_LOST_DIGIT);
2321 PIS(WAKEUP);
2322#undef PIS
2323}
dfc0fd8d
TV		 2324#endif
2325
80c39712
TV		 2326void dispc_dump_regs(struct seq_file *s)
2327{
2328#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dispc_read_reg(r))
2329
2330 dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
2331
2332 DUMPREG(DISPC_REVISION);
2333 DUMPREG(DISPC_SYSCONFIG);
2334 DUMPREG(DISPC_SYSSTATUS);
2335 DUMPREG(DISPC_IRQSTATUS);
2336 DUMPREG(DISPC_IRQENABLE);
2337 DUMPREG(DISPC_CONTROL);
2338 DUMPREG(DISPC_CONFIG);
2339 DUMPREG(DISPC_CAPABLE);
2340 DUMPREG(DISPC_DEFAULT_COLOR0);
2341 DUMPREG(DISPC_DEFAULT_COLOR1);
2342 DUMPREG(DISPC_TRANS_COLOR0);
2343 DUMPREG(DISPC_TRANS_COLOR1);
2344 DUMPREG(DISPC_LINE_STATUS);
2345 DUMPREG(DISPC_LINE_NUMBER);
2346 DUMPREG(DISPC_TIMING_H);
2347 DUMPREG(DISPC_TIMING_V);
2348 DUMPREG(DISPC_POL_FREQ);
2349 DUMPREG(DISPC_DIVISOR);
2350 DUMPREG(DISPC_GLOBAL_ALPHA);
2351 DUMPREG(DISPC_SIZE_DIG);
2352 DUMPREG(DISPC_SIZE_LCD);
2353
2354 DUMPREG(DISPC_GFX_BA0);
2355 DUMPREG(DISPC_GFX_BA1);
2356 DUMPREG(DISPC_GFX_POSITION);
2357 DUMPREG(DISPC_GFX_SIZE);
2358 DUMPREG(DISPC_GFX_ATTRIBUTES);
2359 DUMPREG(DISPC_GFX_FIFO_THRESHOLD);
2360 DUMPREG(DISPC_GFX_FIFO_SIZE_STATUS);
2361 DUMPREG(DISPC_GFX_ROW_INC);
2362 DUMPREG(DISPC_GFX_PIXEL_INC);
2363 DUMPREG(DISPC_GFX_WINDOW_SKIP);
2364 DUMPREG(DISPC_GFX_TABLE_BA);
2365
2366 DUMPREG(DISPC_DATA_CYCLE1);
2367 DUMPREG(DISPC_DATA_CYCLE2);
2368 DUMPREG(DISPC_DATA_CYCLE3);
2369
2370 DUMPREG(DISPC_CPR_COEF_R);
2371 DUMPREG(DISPC_CPR_COEF_G);
2372 DUMPREG(DISPC_CPR_COEF_B);
2373
2374 DUMPREG(DISPC_GFX_PRELOAD);
2375
2376 DUMPREG(DISPC_VID_BA0(0));
2377 DUMPREG(DISPC_VID_BA1(0));
2378 DUMPREG(DISPC_VID_POSITION(0));
2379 DUMPREG(DISPC_VID_SIZE(0));
2380 DUMPREG(DISPC_VID_ATTRIBUTES(0));
2381 DUMPREG(DISPC_VID_FIFO_THRESHOLD(0));
2382 DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(0));
2383 DUMPREG(DISPC_VID_ROW_INC(0));
2384 DUMPREG(DISPC_VID_PIXEL_INC(0));
2385 DUMPREG(DISPC_VID_FIR(0));
2386 DUMPREG(DISPC_VID_PICTURE_SIZE(0));
2387 DUMPREG(DISPC_VID_ACCU0(0));
2388 DUMPREG(DISPC_VID_ACCU1(0));
2389
2390 DUMPREG(DISPC_VID_BA0(1));
2391 DUMPREG(DISPC_VID_BA1(1));
2392 DUMPREG(DISPC_VID_POSITION(1));
2393 DUMPREG(DISPC_VID_SIZE(1));
2394 DUMPREG(DISPC_VID_ATTRIBUTES(1));
2395 DUMPREG(DISPC_VID_FIFO_THRESHOLD(1));
2396 DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(1));
2397 DUMPREG(DISPC_VID_ROW_INC(1));
2398 DUMPREG(DISPC_VID_PIXEL_INC(1));
2399 DUMPREG(DISPC_VID_FIR(1));
2400 DUMPREG(DISPC_VID_PICTURE_SIZE(1));
2401 DUMPREG(DISPC_VID_ACCU0(1));
2402 DUMPREG(DISPC_VID_ACCU1(1));
2403
2404 DUMPREG(DISPC_VID_FIR_COEF_H(0, 0));
2405 DUMPREG(DISPC_VID_FIR_COEF_H(0, 1));
2406 DUMPREG(DISPC_VID_FIR_COEF_H(0, 2));
2407 DUMPREG(DISPC_VID_FIR_COEF_H(0, 3));
2408 DUMPREG(DISPC_VID_FIR_COEF_H(0, 4));
2409 DUMPREG(DISPC_VID_FIR_COEF_H(0, 5));
2410 DUMPREG(DISPC_VID_FIR_COEF_H(0, 6));
2411 DUMPREG(DISPC_VID_FIR_COEF_H(0, 7));
2412 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 0));
2413 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 1));
2414 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 2));
2415 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 3));
2416 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 4));
2417 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 5));
2418 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 6));
2419 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 7));
2420 DUMPREG(DISPC_VID_CONV_COEF(0, 0));
2421 DUMPREG(DISPC_VID_CONV_COEF(0, 1));
2422 DUMPREG(DISPC_VID_CONV_COEF(0, 2));
2423 DUMPREG(DISPC_VID_CONV_COEF(0, 3));
2424 DUMPREG(DISPC_VID_CONV_COEF(0, 4));
2425 DUMPREG(DISPC_VID_FIR_COEF_V(0, 0));
2426 DUMPREG(DISPC_VID_FIR_COEF_V(0, 1));
2427 DUMPREG(DISPC_VID_FIR_COEF_V(0, 2));
2428 DUMPREG(DISPC_VID_FIR_COEF_V(0, 3));
2429 DUMPREG(DISPC_VID_FIR_COEF_V(0, 4));
2430 DUMPREG(DISPC_VID_FIR_COEF_V(0, 5));
2431 DUMPREG(DISPC_VID_FIR_COEF_V(0, 6));
2432 DUMPREG(DISPC_VID_FIR_COEF_V(0, 7));
2433
2434 DUMPREG(DISPC_VID_FIR_COEF_H(1, 0));
2435 DUMPREG(DISPC_VID_FIR_COEF_H(1, 1));
2436 DUMPREG(DISPC_VID_FIR_COEF_H(1, 2));
2437 DUMPREG(DISPC_VID_FIR_COEF_H(1, 3));
2438 DUMPREG(DISPC_VID_FIR_COEF_H(1, 4));
2439 DUMPREG(DISPC_VID_FIR_COEF_H(1, 5));
2440 DUMPREG(DISPC_VID_FIR_COEF_H(1, 6));
2441 DUMPREG(DISPC_VID_FIR_COEF_H(1, 7));
2442 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 0));
2443 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 1));
2444 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 2));
2445 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 3));
2446 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 4));
2447 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 5));
2448 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 6));
2449 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 7));
2450 DUMPREG(DISPC_VID_CONV_COEF(1, 0));
2451 DUMPREG(DISPC_VID_CONV_COEF(1, 1));
2452 DUMPREG(DISPC_VID_CONV_COEF(1, 2));
2453 DUMPREG(DISPC_VID_CONV_COEF(1, 3));
2454 DUMPREG(DISPC_VID_CONV_COEF(1, 4));
2455 DUMPREG(DISPC_VID_FIR_COEF_V(1, 0));
2456 DUMPREG(DISPC_VID_FIR_COEF_V(1, 1));
2457 DUMPREG(DISPC_VID_FIR_COEF_V(1, 2));
2458 DUMPREG(DISPC_VID_FIR_COEF_V(1, 3));
2459 DUMPREG(DISPC_VID_FIR_COEF_V(1, 4));
2460 DUMPREG(DISPC_VID_FIR_COEF_V(1, 5));
2461 DUMPREG(DISPC_VID_FIR_COEF_V(1, 6));
2462 DUMPREG(DISPC_VID_FIR_COEF_V(1, 7));
2463
2464 DUMPREG(DISPC_VID_PRELOAD(0));
2465 DUMPREG(DISPC_VID_PRELOAD(1));
2466
2467 dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
2468#undef DUMPREG
2469}
2470
2471static void _dispc_set_pol_freq(bool onoff, bool rf, bool ieo, bool ipc,
2472 bool ihs, bool ivs, u8 acbi, u8 acb)
2473{
2474 u32 l = 0;
2475
2476 DSSDBG("onoff %d rf %d ieo %d ipc %d ihs %d ivs %d acbi %d acb %d\n",
2477 onoff, rf, ieo, ipc, ihs, ivs, acbi, acb);
2478
2479 l |= FLD_VAL(onoff, 17, 17);
2480 l |= FLD_VAL(rf, 16, 16);
2481 l |= FLD_VAL(ieo, 15, 15);
2482 l |= FLD_VAL(ipc, 14, 14);
2483 l |= FLD_VAL(ihs, 13, 13);
2484 l |= FLD_VAL(ivs, 12, 12);
2485 l |= FLD_VAL(acbi, 11, 8);
2486 l |= FLD_VAL(acb, 7, 0);
2487
2488 enable_clocks(1);
2489 dispc_write_reg(DISPC_POL_FREQ, l);
2490 enable_clocks(0);
2491}
2492
2493void dispc_set_pol_freq(enum omap_panel_config config, u8 acbi, u8 acb)
2494{
2495 _dispc_set_pol_freq((config & OMAP_DSS_LCD_ONOFF) != 0,
2496 (config & OMAP_DSS_LCD_RF) != 0,
2497 (config & OMAP_DSS_LCD_IEO) != 0,
2498 (config & OMAP_DSS_LCD_IPC) != 0,
2499 (config & OMAP_DSS_LCD_IHS) != 0,
2500 (config & OMAP_DSS_LCD_IVS) != 0,
2501 acbi, acb);
2502}
2503
2504/* with fck as input clock rate, find dispc dividers that produce req_pck */
2505void dispc_find_clk_divs(bool is_tft, unsigned long req_pck, unsigned long fck,
2506 struct dispc_clock_info *cinfo)
2507{
2508 u16 pcd_min = is_tft ? 2 : 3;
2509 unsigned long best_pck;
2510 u16 best_ld, cur_ld;
2511 u16 best_pd, cur_pd;
2512
2513 best_pck = 0;
2514 best_ld = 0;
2515 best_pd = 0;
2516
2517 for (cur_ld = 1; cur_ld <= 255; ++cur_ld) {
2518 unsigned long lck = fck / cur_ld;
2519
2520 for (cur_pd = pcd_min; cur_pd <= 255; ++cur_pd) {
2521 unsigned long pck = lck / cur_pd;
2522 long old_delta = abs(best_pck - req_pck);
2523 long new_delta = abs(pck - req_pck);
2524
2525 if (best_pck == 0 || new_delta < old_delta) {
2526 best_pck = pck;
2527 best_ld = cur_ld;
2528 best_pd = cur_pd;
2529
2530 if (pck == req_pck)
2531 goto found;
2532 }
2533
2534 if (pck < req_pck)
2535 break;
2536 }
2537
2538 if (lck / pcd_min < req_pck)
2539 break;
2540 }
2541
2542found:
2543 cinfo->lck_div = best_ld;
2544 cinfo->pck_div = best_pd;
2545 cinfo->lck = fck / cinfo->lck_div;
2546 cinfo->pck = cinfo->lck / cinfo->pck_div;
2547}
2548
2549/* calculate clock rates using dividers in cinfo */
2550int dispc_calc_clock_rates(unsigned long dispc_fclk_rate,
2551 struct dispc_clock_info *cinfo)
2552{
2553 if (cinfo->lck_div > 255 || cinfo->lck_div == 0)
2554 return -EINVAL;
2555 if (cinfo->pck_div < 2 || cinfo->pck_div > 255)
2556 return -EINVAL;
2557
2558 cinfo->lck = dispc_fclk_rate / cinfo->lck_div;
2559 cinfo->pck = cinfo->lck / cinfo->pck_div;
2560
2561 return 0;
2562}
2563
2564int dispc_set_clock_div(struct dispc_clock_info *cinfo)
2565{
2566 DSSDBG("lck = %lu (%u)\n", cinfo->lck, cinfo->lck_div);
2567 DSSDBG("pck = %lu (%u)\n", cinfo->pck, cinfo->pck_div);
2568
2569 dispc_set_lcd_divisor(cinfo->lck_div, cinfo->pck_div);
2570
2571 return 0;
2572}
2573
2574int dispc_get_clock_div(struct dispc_clock_info *cinfo)
2575{
2576 unsigned long fck;
2577
2578 fck = dispc_fclk_rate();
2579
2580 cinfo->lck_div = REG_GET(DISPC_DIVISOR, 23, 16);
2581 cinfo->pck_div = REG_GET(DISPC_DIVISOR, 7, 0);
2582
2583 cinfo->lck = fck / cinfo->lck_div;
2584 cinfo->pck = cinfo->lck / cinfo->pck_div;
2585
2586 return 0;
2587}
2588
2589/* dispc.irq_lock has to be locked by the caller */
2590static void _omap_dispc_set_irqs(void)
2591{
2592 u32 mask;
2593 u32 old_mask;
2594 int i;
2595 struct omap_dispc_isr_data *isr_data;
2596
2597 mask = dispc.irq_error_mask;
2598
2599 for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
2600 isr_data = &dispc.registered_isr[i];
2601
2602 if (isr_data->isr == NULL)
2603 continue;
2604
2605 mask |= isr_data->mask;
2606 }
2607
2608 enable_clocks(1);
2609
2610 old_mask = dispc_read_reg(DISPC_IRQENABLE);
2611 /* clear the irqstatus for newly enabled irqs */
2612 dispc_write_reg(DISPC_IRQSTATUS, (mask ^ old_mask) & mask);
2613
2614 dispc_write_reg(DISPC_IRQENABLE, mask);
2615
2616 enable_clocks(0);
2617}
2618
2619int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask)
2620{
2621 int i;
2622 int ret;
2623 unsigned long flags;
2624 struct omap_dispc_isr_data *isr_data;
2625
2626 if (isr == NULL)
2627 return -EINVAL;
2628
2629 spin_lock_irqsave(&dispc.irq_lock, flags);
2630
2631 /* check for duplicate entry */
2632 for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
2633 isr_data = &dispc.registered_isr[i];
2634 if (isr_data->isr == isr && isr_data->arg == arg &&
2635 isr_data->mask == mask) {
2636 ret = -EINVAL;
2637 goto err;
2638 }
2639 }
2640
2641 isr_data = NULL;
2642 ret = -EBUSY;
2643
2644 for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
2645 isr_data = &dispc.registered_isr[i];
2646
2647 if (isr_data->isr != NULL)
2648 continue;
2649
2650 isr_data->isr = isr;
2651 isr_data->arg = arg;
2652 isr_data->mask = mask;
2653 ret = 0;
2654
2655 break;
2656 }
2657
2658 _omap_dispc_set_irqs();
2659
2660 spin_unlock_irqrestore(&dispc.irq_lock, flags);
2661
2662 return 0;
2663err:
2664 spin_unlock_irqrestore(&dispc.irq_lock, flags);
2665
2666 return ret;
2667}
2668EXPORT_SYMBOL(omap_dispc_register_isr);
2669
2670int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask)
2671{
2672 int i;
2673 unsigned long flags;
2674 int ret = -EINVAL;
2675 struct omap_dispc_isr_data *isr_data;
2676
2677 spin_lock_irqsave(&dispc.irq_lock, flags);
2678
2679 for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
2680 isr_data = &dispc.registered_isr[i];
2681 if (isr_data->isr != isr || isr_data->arg != arg ||
2682 isr_data->mask != mask)
2683 continue;
2684
2685 /* found the correct isr */
2686
2687 isr_data->isr = NULL;
2688 isr_data->arg = NULL;
2689 isr_data->mask = 0;
2690
2691 ret = 0;
2692 break;
2693 }
2694
2695 if (ret == 0)
2696 _omap_dispc_set_irqs();
2697
2698 spin_unlock_irqrestore(&dispc.irq_lock, flags);
2699
2700 return ret;
2701}
2702EXPORT_SYMBOL(omap_dispc_unregister_isr);
2703
2704#ifdef DEBUG
2705static void print_irq_status(u32 status)
2706{
2707 if ((status & dispc.irq_error_mask) == 0)
2708 return;
2709
2710 printk(KERN_DEBUG "DISPC IRQ: 0x%x: ", status);
2711
2712#define PIS(x) \
2713 if (status & DISPC_IRQ_##x) \
2714 printk(#x " ");
2715 PIS(GFX_FIFO_UNDERFLOW);
2716 PIS(OCP_ERR);
2717 PIS(VID1_FIFO_UNDERFLOW);
2718 PIS(VID2_FIFO_UNDERFLOW);
2719 PIS(SYNC_LOST);
2720 PIS(SYNC_LOST_DIGIT);
2721#undef PIS
2722
2723 printk("\n");
2724}
2725#endif
2726
2727/* Called from dss.c. Note that we don't touch clocks here,
2728 * but we presume they are on because we got an IRQ. However,
2729 * an irq handler may turn the clocks off, so we may not have
2730 * clock later in the function. */
2731void dispc_irq_handler(void)
2732{
2733 int i;
2734 u32 irqstatus;
2735 u32 handledirqs = 0;
2736 u32 unhandled_errors;
2737 struct omap_dispc_isr_data *isr_data;
2738 struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS];
2739
2740 spin_lock(&dispc.irq_lock);
2741
2742 irqstatus = dispc_read_reg(DISPC_IRQSTATUS);
2743
dfc0fd8d
TV		 2744#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
2745 spin_lock(&dispc.irq_stats_lock);
2746 dispc.irq_stats.irq_count++;
2747 dss_collect_irq_stats(irqstatus, dispc.irq_stats.irqs);
2748 spin_unlock(&dispc.irq_stats_lock);
2749#endif
2750
80c39712
TV		 2751#ifdef DEBUG
2752 if (dss_debug)
2753 print_irq_status(irqstatus);
2754#endif
2755 /* Ack the interrupt. Do it here before clocks are possibly turned
2756 * off */
2757 dispc_write_reg(DISPC_IRQSTATUS, irqstatus);
2758 /* flush posted write */
2759 dispc_read_reg(DISPC_IRQSTATUS);
2760
2761 /* make a copy and unlock, so that isrs can unregister
2762 * themselves */
2763 memcpy(registered_isr, dispc.registered_isr,
2764 sizeof(registered_isr));
2765
2766 spin_unlock(&dispc.irq_lock);
2767
2768 for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
2769 isr_data = &registered_isr[i];
2770
2771 if (!isr_data->isr)
2772 continue;
2773
2774 if (isr_data->mask & irqstatus) {
2775 isr_data->isr(isr_data->arg, irqstatus);
2776 handledirqs |= isr_data->mask;
2777 }
2778 }
2779
2780 spin_lock(&dispc.irq_lock);
2781
2782 unhandled_errors = irqstatus & ~handledirqs & dispc.irq_error_mask;
2783
2784 if (unhandled_errors) {
2785 dispc.error_irqs |= unhandled_errors;
2786
2787 dispc.irq_error_mask &= ~unhandled_errors;
2788 _omap_dispc_set_irqs();
2789
2790 schedule_work(&dispc.error_work);
2791 }
2792
2793 spin_unlock(&dispc.irq_lock);
2794}
2795
2796static void dispc_error_worker(struct work_struct *work)
2797{
2798 int i;
2799 u32 errors;
2800 unsigned long flags;
2801
2802 spin_lock_irqsave(&dispc.irq_lock, flags);
2803 errors = dispc.error_irqs;
2804 dispc.error_irqs = 0;
2805 spin_unlock_irqrestore(&dispc.irq_lock, flags);
2806
2807 if (errors & DISPC_IRQ_GFX_FIFO_UNDERFLOW) {
2808 DSSERR("GFX_FIFO_UNDERFLOW, disabling GFX\n");
2809 for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
2810 struct omap_overlay *ovl;
2811 ovl = omap_dss_get_overlay(i);
2812
2813 if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
2814 continue;
2815
2816 if (ovl->id == 0) {
2817 dispc_enable_plane(ovl->id, 0);
2818 dispc_go(ovl->manager->id);
2819 mdelay(50);
2820 break;
2821 }
2822 }
2823 }
2824
2825 if (errors & DISPC_IRQ_VID1_FIFO_UNDERFLOW) {
2826 DSSERR("VID1_FIFO_UNDERFLOW, disabling VID1\n");
2827 for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
2828 struct omap_overlay *ovl;
2829 ovl = omap_dss_get_overlay(i);
2830
2831 if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
2832 continue;
2833
2834 if (ovl->id == 1) {
2835 dispc_enable_plane(ovl->id, 0);
2836 dispc_go(ovl->manager->id);
2837 mdelay(50);
2838 break;
2839 }
2840 }
2841 }
2842
2843 if (errors & DISPC_IRQ_VID2_FIFO_UNDERFLOW) {
2844 DSSERR("VID2_FIFO_UNDERFLOW, disabling VID2\n");
2845 for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
2846 struct omap_overlay *ovl;
2847 ovl = omap_dss_get_overlay(i);
2848
2849 if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
2850 continue;
2851
2852 if (ovl->id == 2) {
2853 dispc_enable_plane(ovl->id, 0);
2854 dispc_go(ovl->manager->id);
2855 mdelay(50);
2856 break;
2857 }
2858 }
2859 }
2860
2861 if (errors & DISPC_IRQ_SYNC_LOST) {
2862 struct omap_overlay_manager *manager = NULL;
2863 bool enable = false;
2864
2865 DSSERR("SYNC_LOST, disabling LCD\n");
2866
2867 for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
2868 struct omap_overlay_manager *mgr;
2869 mgr = omap_dss_get_overlay_manager(i);
2870
2871 if (mgr->id == OMAP_DSS_CHANNEL_LCD) {
2872 manager = mgr;
2873 enable = mgr->device->state ==
2874 OMAP_DSS_DISPLAY_ACTIVE;
37ac60e4 2875 mgr->device->driver->disable(mgr->device);
80c39712
TV		 2876 break;
2877 }
2878 }
2879
2880 if (manager) {
37ac60e4 2881 struct omap_dss_device *dssdev = manager->device;
80c39712
TV		 2882 for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
2883 struct omap_overlay *ovl;
2884 ovl = omap_dss_get_overlay(i);
2885
2886 if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
2887 continue;
2888
2889 if (ovl->id != 0 && ovl->manager == manager)
2890 dispc_enable_plane(ovl->id, 0);
2891 }
2892
2893 dispc_go(manager->id);
2894 mdelay(50);
2895 if (enable)
37ac60e4 2896 dssdev->driver->enable(dssdev);
80c39712
TV		 2897 }
2898 }
2899
2900 if (errors & DISPC_IRQ_SYNC_LOST_DIGIT) {
2901 struct omap_overlay_manager *manager = NULL;
2902 bool enable = false;
2903
2904 DSSERR("SYNC_LOST_DIGIT, disabling TV\n");
2905
2906 for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
2907 struct omap_overlay_manager *mgr;
2908 mgr = omap_dss_get_overlay_manager(i);
2909
2910 if (mgr->id == OMAP_DSS_CHANNEL_DIGIT) {
2911 manager = mgr;
2912 enable = mgr->device->state ==
2913 OMAP_DSS_DISPLAY_ACTIVE;
37ac60e4 2914 mgr->device->driver->disable(mgr->device);
80c39712
TV		 2915 break;
2916 }
2917 }
2918
2919 if (manager) {
37ac60e4 2920 struct omap_dss_device *dssdev = manager->device;
80c39712
TV		 2921 for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
2922 struct omap_overlay *ovl;
2923 ovl = omap_dss_get_overlay(i);
2924
2925 if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
2926 continue;
2927
2928 if (ovl->id != 0 && ovl->manager == manager)
2929 dispc_enable_plane(ovl->id, 0);
2930 }
2931
2932 dispc_go(manager->id);
2933 mdelay(50);
2934 if (enable)
37ac60e4 2935 dssdev->driver->enable(dssdev);
80c39712
TV		 2936 }
2937 }
2938
2939 if (errors & DISPC_IRQ_OCP_ERR) {
2940 DSSERR("OCP_ERR\n");
2941 for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
2942 struct omap_overlay_manager *mgr;
2943 mgr = omap_dss_get_overlay_manager(i);
2944
2945 if (mgr->caps & OMAP_DSS_OVL_CAP_DISPC)
37ac60e4 2946 mgr->device->driver->disable(mgr->device);
80c39712
TV		 2947 }
2948 }
2949
2950 spin_lock_irqsave(&dispc.irq_lock, flags);
2951 dispc.irq_error_mask |= errors;
2952 _omap_dispc_set_irqs();
2953 spin_unlock_irqrestore(&dispc.irq_lock, flags);
2954}
2955
2956int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout)
2957{
2958 void dispc_irq_wait_handler(void *data, u32 mask)
2959 {
2960 complete((struct completion *)data);
2961 }
2962
2963 int r;
2964 DECLARE_COMPLETION_ONSTACK(completion);
2965
2966 r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion,
2967 irqmask);
2968
2969 if (r)
2970 return r;
2971
2972 timeout = wait_for_completion_timeout(&completion, timeout);
2973
2974 omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask);
2975
2976 if (timeout == 0)
2977 return -ETIMEDOUT;
2978
2979 if (timeout == -ERESTARTSYS)
2980 return -ERESTARTSYS;
2981
2982 return 0;
2983}
2984
2985int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,
2986 unsigned long timeout)
2987{
2988 void dispc_irq_wait_handler(void *data, u32 mask)
2989 {
2990 complete((struct completion *)data);
2991 }
2992
2993 int r;
2994 DECLARE_COMPLETION_ONSTACK(completion);
2995
2996 r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion,
2997 irqmask);
2998
2999 if (r)
3000 return r;
3001
3002 timeout = wait_for_completion_interruptible_timeout(&completion,
3003 timeout);
3004
3005 omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask);
3006
3007 if (timeout == 0)
3008 return -ETIMEDOUT;
3009
3010 if (timeout == -ERESTARTSYS)
3011 return -ERESTARTSYS;
3012
3013 return 0;
3014}
3015
3016#ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC
3017void dispc_fake_vsync_irq(void)
3018{
3019 u32 irqstatus = DISPC_IRQ_VSYNC;
3020 int i;
3021
3022 local_irq_disable();
3023
3024 for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
3025 struct omap_dispc_isr_data *isr_data;
3026 isr_data = &dispc.registered_isr[i];
3027
3028 if (!isr_data->isr)
3029 continue;
3030
3031 if (isr_data->mask & irqstatus)
3032 isr_data->isr(isr_data->arg, irqstatus);
3033 }
3034
3035 local_irq_enable();
3036}
3037#endif
3038
3039static void _omap_dispc_initialize_irq(void)
3040{
3041 unsigned long flags;
3042
3043 spin_lock_irqsave(&dispc.irq_lock, flags);
3044
3045 memset(dispc.registered_isr, 0, sizeof(dispc.registered_isr));
3046
3047 dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR;
3048
3049 /* there's SYNC_LOST_DIGIT waiting after enabling the DSS,
3050 * so clear it */
3051 dispc_write_reg(DISPC_IRQSTATUS, dispc_read_reg(DISPC_IRQSTATUS));
3052
3053 _omap_dispc_set_irqs();
3054
3055 spin_unlock_irqrestore(&dispc.irq_lock, flags);
3056}
3057
3058void dispc_enable_sidle(void)
3059{
3060 REG_FLD_MOD(DISPC_SYSCONFIG, 2, 4, 3); /* SIDLEMODE: smart idle */
3061}
3062
3063void dispc_disable_sidle(void)
3064{
3065 REG_FLD_MOD(DISPC_SYSCONFIG, 1, 4, 3); /* SIDLEMODE: no idle */
3066}
3067
3068static void _omap_dispc_initial_config(void)
3069{
3070 u32 l;
3071
3072 l = dispc_read_reg(DISPC_SYSCONFIG);
3073 l = FLD_MOD(l, 2, 13, 12); /* MIDLEMODE: smart standby */
3074 l = FLD_MOD(l, 2, 4, 3); /* SIDLEMODE: smart idle */
3075 l = FLD_MOD(l, 1, 2, 2); /* ENWAKEUP */
3076 l = FLD_MOD(l, 1, 0, 0); /* AUTOIDLE */
3077 dispc_write_reg(DISPC_SYSCONFIG, l);
3078
3079 /* FUNCGATED */
3080 REG_FLD_MOD(DISPC_CONFIG, 1, 9, 9);
3081
3082 /* L3 firewall setting: enable access to OCM RAM */
3083 /* XXX this should be somewhere in plat-omap */
3084 if (cpu_is_omap24xx())
3085 __raw_writel(0x402000b0, OMAP2_L3_IO_ADDRESS(0x680050a0));
3086
3087 _dispc_setup_color_conv_coef();
3088
3089 dispc_set_loadmode(OMAP_DSS_LOAD_FRAME_ONLY);
3090
3091 dispc_read_plane_fifo_sizes();
3092}
3093
3094int dispc_init(void)
3095{
3096 u32 rev;
3097
3098 spin_lock_init(&dispc.irq_lock);
3099
dfc0fd8d
TV		 3100#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
3101 spin_lock_init(&dispc.irq_stats_lock);
3102 dispc.irq_stats.last_reset = jiffies;
3103#endif
3104
80c39712
TV		 3105 INIT_WORK(&dispc.error_work, dispc_error_worker);
3106
3107 dispc.base = ioremap(DISPC_BASE, DISPC_SZ_REGS);
3108 if (!dispc.base) {
3109 DSSERR("can't ioremap DISPC\n");
3110 return -ENOMEM;
3111 }
3112
3113 enable_clocks(1);
3114
3115 _omap_dispc_initial_config();
3116
3117 _omap_dispc_initialize_irq();
3118
3119 dispc_save_context();
3120
3121 rev = dispc_read_reg(DISPC_REVISION);
3122 printk(KERN_INFO "OMAP DISPC rev %d.%d\n",
3123 FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
3124
3125 enable_clocks(0);
3126
3127 return 0;
3128}
3129
3130void dispc_exit(void)
3131{
3132 iounmap(dispc.base);
3133}
3134
3135int dispc_enable_plane(enum omap_plane plane, bool enable)
3136{
3137 DSSDBG("dispc_enable_plane %d, %d\n", plane, enable);
3138
3139 enable_clocks(1);
3140 _dispc_enable_plane(plane, enable);
3141 enable_clocks(0);
3142
3143 return 0;
3144}
3145
3146int dispc_setup_plane(enum omap_plane plane,
3147 u32 paddr, u16 screen_width,
3148 u16 pos_x, u16 pos_y,
3149 u16 width, u16 height,
3150 u16 out_width, u16 out_height,
3151 enum omap_color_mode color_mode,
3152 bool ilace,
3153 enum omap_dss_rotation_type rotation_type,
3154 u8 rotation, bool mirror, u8 global_alpha)
3155{
3156 int r = 0;
3157
3158 DSSDBG("dispc_setup_plane %d, pa %x, sw %d, %d,%d, %dx%d -> "
3159 "%dx%d, ilace %d, cmode %x, rot %d, mir %d\n",
3160 plane, paddr, screen_width, pos_x, pos_y,
3161 width, height,
3162 out_width, out_height,
3163 ilace, color_mode,
3164 rotation, mirror);
3165
3166 enable_clocks(1);
3167
3168 r = _dispc_setup_plane(plane,
3169 paddr, screen_width,
3170 pos_x, pos_y,
3171 width, height,
3172 out_width, out_height,
3173 color_mode, ilace,
3174 rotation_type,
3175 rotation, mirror,
3176 global_alpha);
3177
3178 enable_clocks(0);
3179
3180 return r;
3181}
Linux 6.x block layer and io_uring tree(s)